Author Guidelines

1. General Guidelines

  • Manuscripts must be original and not under review or published elsewhere.
  • Manuscripts must follow the JPJOK Manuscript Template. Submissions that do not use the template will be returned for correction.
  • Manuscripts must be written in English (EN-UK), using Times New Roman.
  • The typical length of a manuscript is 3,500–7,000 words, excluding references, tables, and figures.
  • File format: Microsoft Word (.doc or .docx) only.

2. Manuscript Structure

Authors must structure their manuscripts in the following order:

  1. Title
  2. Authors and Affiliations
  3. Abstract
  4. Keywords
  5. Introduction
  6. Methods
  7. Results and Discussion
  8. Conclusions
  9. Ethical Statement (if any)
  10. Conflict of Interest (if any)
  11. Funding Statement (if any)
  12. Author Contributions (if any)
  13. References
  14. Appendix (if applicable)

3. Title and Author Information

Title

  • Written in Times New Roman, 14 pt, bold.
  • Capitalise Each Word.
  • Maximum 20 words.

Authors

  • Written in Times New Roman, 12 pt.
  • Use superscript numbers to indicate affiliations.
  • Mark the corresponding author with an asterisk (*).

Affiliations and Corresponding Author

  • Provide full affiliation: Department, Faculty, University, City, Country.
  • Include the email address of the corresponding author.
  • Include the ORCID iD of the corresponding author.

Example:

First Author¹*, Second Author², Third Author³
¹ Department…, University…, Country
² Department…, University…, Country
✉ Corresponding author: author@university.ac.id
ORCID: https://orcid.org/0000-0000-0000-0000

4. Abstract and Keywords

Abstract

  • Maximum 200 words.
  • Written as one paragraph, without sub-headings.
  • Use Times New Roman, 10 pt, single-spaced.
  • Do not include citations or references.
  • Do not use abbreviations that are not fully defined.
  • The abstract must include: background, purpose, methods, key results, principal conclusion, and contribution/novelty.

Keywords

  • Provide 3–5 keywords.
  • Separate keywords with commas.
  • Order them from general to specific terms.
  • Use Times New Roman, 10 pt, single-spaced.

5. Introduction

  • Present the background and current state of knowledge in the field.
  • Provide a critical synthesis of the most relevant literature, prioritising sources published within the last 5–10 years.
  • Clearly state the research gap that the study addresses.
  • Formulate the objectives, research questions, and/or hypotheses.
  • Explain the novelty and specific contribution (theoretical, methodological, empirical, and/or practical).
  • Use APA 7th edition for in-text citations and references.
  • Length: approximately 15–20% of the manuscript.

6. Methods

  • Describe the study design (include registration/preregistration if applicable).
  • Explain participants and eligibility criteria, setting, recruitment, and sampling (including sample size justification where appropriate).
  • Describe instruments and measures, including operational definitions, units, and evidence of validity and reliability.
  • Explain data collection procedures in sufficient detail for replication.
  • Describe statistical and/or analytical methods, including assumption checks, effect sizes, confidence intervals, and software used (with version).
  • Report ethical approval (name of ethics committee and approval number) and informed consent/assent when applicable.
  • Indicate any relevant reporting guideline followed (e.g., CONSORT, STROBE, PRISMA, COREQ).
  • Length: approximately 10–15% of the manuscript.

7. Results and Discussion

Results

  • Present the analytical findings that directly address the research questions/hypotheses.
  • Report sample size (n) for each analysis.
  • Provide key descriptive statistics (e.g., M, SD).
  • Report appropriate test statistics (e.g., t, F, χ², z), degrees of freedom, p-values, effect sizes, and 95% confidence intervals.
  • For multivariable or mixed models, report model-fit indices (e.g., R², AIC, BIC, ICC) where relevant.
  • Use tables and figures to summarise numerical data efficiently and avoid duplication between text and tables/figures.

Discussion

  • Interpret the findings in light of the theoretical or conceptual framework and the research gap identified in the Introduction.
  • Compare the results with recent literature (last 5–10 years) and relevant seminal works.
  • Highlight the main findings and their implications.
  • Discuss strengths and limitations, boundary conditions, and generalisability.
  • Provide practical, theoretical, or policy implications without overstating causality.
  • Suggest specific directions for future research.
  • The Discussion may be organised into sub-sections for clarity.

8. Conclusions

  • Provide a concise, evidence-based answer to the research questions/hypotheses.
  • Summarise the key takeaways from the Results and Discussion.
  • Do not introduce new data, analyses, or claims.
  • State the main contributions and implications.
  • Include suggestions for future research aligned with the study’s scope and evidence.
  • Length: approximately 5–10% of the manuscript.

9. Ethical Statement (if any)

  • If ethical approval exists: This study received ethical approval from the Institutional Review Board/Ethics Committee of [Institution Name] (Approval No.: [XXXX]).
  • If ethical approval is not required: Ethical approval was not required, as the study did not involve human participants, animals, or sensitive personal data.

10. Conflict of Interest (if any)

  • If no conflict exists: The authors declare no conflicts of interest.
  • If a conflict exists: The authors disclose the following potential conflicts of interest: [details].

11. Funding Statement (if any)

  • If no funding was received: This research received no external funding.
  • If funded: This research was funded by [Funding Agency Name], Grant Number [XXXX].

12. Author Contributions (if any)

  • Conceptualisation: [Name(s)]
  • Methodology: [Name(s)]
  • Data Collection: [Name(s)]
  • Formal Analysis: [Name(s)]
  • Writing – Original Draft: [Name(s)]
  • Writing – Review & Editing: [Name(s)]
  • Supervision: [Name(s)]

For single-author manuscripts: The sole author completed all aspects of the research and manuscript preparation.

13. Tables and Figures

Tables

  • Each table must have a clear title above the table.
  • Explanatory notes and abbreviations should be placed below the table.
  • Use simple formatting and avoid vertical lines.

Figures

  • Figures must be high quality (minimum 300 dpi).
  • Provide a concise title below each figure.
  • Include axes labels, units, legends, and any relevant notes.
  • Accepted formats: JPG, PNG, TIFF.

14. References

  • Follow APA 7th Edition.
  • Minimum 20 references.
  • At least 70% of the references must be from reputable peer-reviewed journals.
  • Preferably published within the last 10 years.
  • Provide DOIs using https://doi.org/xxxxx when available.
  • Use hanging indent, alphabetical order.

15. Submission Preparation Checklist

  • The manuscript follows the JPJOK Manuscript Template.
  • The manuscript is written in English (EN-UK).
  • Abstract ≤ 200 words.
  • References use APA 7th edition.
  • Ethical/COI/Funding/Contributions included (if any).
  • Tables and figures follow required format.
  • File is .doc or .docx.
  • Similarity < 20% recommended.