Plagiarism Policy

Informasi does not tolerate plagiarism. Plagiarism is the use of another person’s words, ideas, data, or images without proper acknowledgement, presenting them as one’s own work. Manuscripts submitted to the journal must be original, unpublished, and not under consideration elsewhere. This policy follows the COPE Core Practices and the COPE flowcharts on plagiarism.

1. Forms of Plagiarism
Direct copying Copying text from another source without quotation marks and citation.
Close paraphrasing Rewording another author’s text so closely that its structure and ideas remain, even if the source is cited.
Ideas, data, and images Using another person’s ideas, data, figures, tables, or media content without acknowledgement or, where needed, permission.
Self-plagiarism Reusing one’s own published text or figures without citing the earlier publication.
Translation plagiarism Translating another work, for example from Indonesian into English, and presenting it as original.
2. Responsibilities of Authors
  • Text taken word for word from another source is placed in quotation marks (or indented for longer quotations) and cited.
  • Figures, tables, images, or screenshots reproduced from another source are cited, and permission is obtained from the copyright holder where required.
  • Authors who reuse their own previously published material identify and cite the earlier publication and explain what is new in the present manuscript.
  • By submitting, authors confirm that the manuscript is original and that they have read this policy.
3. Similarity Checking

Every manuscript is checked with Turnitin at submission, before peer review, and again before publication. The reference list is excluded from the similarity score. The maximum overall similarity accepted is 20%. The similarity report is shared with the authors when revision is required.

A similarity score is an indicator, not proof of plagiarism. The editor reads the report and judges whether the matched text is properly quoted and cited, a common phrase or method description, or plagiarism.

Overall similarity Action
≤ 20% The manuscript proceeds to peer review. Any passages flagged by the editor must still be cited or rewritten.
21–40% The manuscript is returned to the authors before peer review. It is checked again after revision and proceeds only when the similarity is 20% or less.
> 40% The manuscript is rejected. A manuscript is also rejected at any level of similarity if the editor finds deliberate copying.
4. Related Cases
Duplicate submission or publication Submitting the same manuscript to more than one journal, or publishing substantially the same work twice, including in another language, is handled as described in Publication Ethics. The editor of the other journal may be informed.
Conference papers and theses A manuscript based on a conference paper or a thesis is accepted only if it is substantially developed. Authors cite the earlier version and, for published proceedings, obtain permission from the copyright holder.
AI-generated text Undisclosed AI-generated text is handled under the Generative AI Policy.
5. Plagiarism Found After Publication

If plagiarism is found in a published article, the Editor-in-Chief asks the authors to explain and follows the COPE flowcharts. Depending on the extent, the journal publishes a correction or retracts the article, as described in the R-W-C Policy.

In serious or repeated cases, the journal may inform the authors’ institutions and bar the authors from submitting for a period decided by the Editor-in-Chief, following the Research Misconduct Policy. Concerns about possible plagiarism can be sent to the Editor-in-Chief through the Contact page.