Synthese: Journal of Synthesis in Mathematics Education upholds strict policies against plagiarism and publication malpractice. The journal is committed to maintaining the highest standards of academic integrity and originality.

1. Plagiarism Screening
   • All submitted manuscripts are subject to a plagiarism check using reliable plagiarism detection software before entering the peer review process.
   • Manuscripts with a similarity index of more than 20% (excluding references, quotes, and methodological templates) may be returned to the authors for revision or rejected.
2. Types of Plagiarism
   The journal considers the following as plagiarism or unethical practices:
   • Copying text, ideas, figures, or data from other sources without proper citation.
   • Self-plagiarism or duplicate submission (publishing the same work in more than one journal).
   • Paraphrasing too closely to the original text without adequate attribution.
   • Fabrication or falsification of data, sources, or results.
3. Consequences
   • Manuscripts found to involve plagiarism will be immediately rejected.
   • If plagiarism is discovered after publication, the article will be retracted and an official retraction notice will be issued.
   • Authors may be banned from future submissions to the journal depending on the severity of the violation.
4. Author Responsibility
   • Authors are responsible for ensuring the originality of their work.
   • Proper citation and acknowledgment of sources must always be included.
   • By submitting to this journal, authors declare that their manuscript is free from plagiarism and complies with ethical publishing standards.

This policy reflects the commitment of Nusantara Academic Press to protect the credibility of academic publishing and ensure that only high-quality, original contributions are disseminated.