Author Guidelines

JKI publishes the following types of articles:

• Original article
• Case reports
• Review article
• Methodology article

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• File format: The manuscript should be prepared in Microsoft Word (.doc/.docx) format and should not be locked or protected.
• Language: Written in English.
• Length: Should be around 3500–4500 words, excluding abstract and references, with a maximum of 6 figures/tables
• Layout: The article should be written on A4-sized paper (210 mm × 297 mm) with specific margins (3.5 cm [top], 2.5 cm [bottom], 2 cm [left and right]), using Times New Roman font, 12 pt, single space, normal margins, and one-column format.

There is no specific template to submit your manuscript, we will format it once your manuscript has been accepted. However, you may use our suggested template here:

• Original Research Guidelines
• Case Report Guidelines
• Structural order (applies on 2026, Issue 2 (July) edition):
  • Title: Should be concise, include no abbreviations, and have a maximum of 16 words.
  • Abstract: Should be approximately 100–250 words; concise and precise with enough information to highlight the main points and the importance of the article, including one or two sentences on the background, purpose of the study, methods (basic procedures, study subject selection, and observational and analytical methods), main findings or results, and main conclusion. For Indonesian authors, please include the abstract in Bahasa Indonesia.
  • Keywords: 3–6 words or short phrases in alphabetical order that will allow proper and convenient indexing.
  • Introduction: A maximum of 5 paragraphs, including the justification of the study, the novelty value compared to previous research, the aim of the study or research problems that need to be addressed, and a brief description of the methods used.
  • Methods: The study must follow the EQUATOR Network reporting guidelines, with a minimum explanation of the study design, setting, participants, variables, data sources/measurement, bias, study size, data analysis, and ethical clearance number.
  • Results: Sorted by the study objectives or research hypothesis. The results do not display the same data in two forms (e.g., tables/images/graphics and narration).No citations should be included in the Results section. Avoid relying solely on statistical hypothesis testing, such as P-values, which fail to convey important information about the effect size. Define statistical terms, abbreviations, and symbols.
  • Discussion: Directed at answering the research hypothesis. The discussion should end with the study’s limitations.
  • Conclusion: Written in a narrative form. The conclusion is the answer to the hypothesis that leads to the study’s main purpose. Recommendations can be written in this section.
  • Acknowledgments (if any): Limited to appropriate professionals, funding, and AI use declaration.
  • Data Availability Statement: Describes the accessibility of the data supporting the study findings.
  • Author Contributions: Describes the authors contribution following CRediT taxonomies.
  • Funding Information: Clearly state the funding sources.
  • References
• Other elements:
  • Abbreviations: Defined upon their first appearance in the text.
  • Units of measurement: Following the SI units.
  • Page and line numbers: Include page and line numbers in the manuscript file. Use continuous line numbers (do not restart the numbering on each page).

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📊 Tables

• Tables must be numbered consecutively using Arabic numerals (e.g., Table 1, Table 2).
• Each table must have a brief and descriptive title placed directly above the table.
• Do not use internal horizontal or vertical lines; use lines only to separate the heading from the main body and at the bottom of the table (standard APA style).
• Define all abbreviations or statistical parameters used within the table in a footnote immediately below the table.

🖼️ Figures

• Figures should be numbered consecutively using Arabic numerals (e.g., Figure 1, Figure 2).
• Provide a clear, descriptive caption for each figure, placed directly below it.
• Ensure that figures are integrated into the manuscript for the review process.
• Once the manuscript is accepted, you will be required to upload high-definition (HD) versions of your figures separately (minimum 300 dpi resolution).

📚 References

• All citations and reference lists must strictly follow the APA (7th Edition) style.
• Limit references to a maximum of 25 sources.
• References must be up-to-date, strongly encouraged to the last 10 years for books and the last 5 years for peer-reviewed journal articles.

Selected APA 7th Reference Examples:

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