| Plagiarism is the act of plagiarizing the work of others without paraphrasing and citing the source. Plagiarism is a negative act and is included in the category of academic crime. This study aims to: (1) analyze the students' perception of plagiarism in writing classes, (2) and analyze to what extent these perceptions affect students' understanding of practising textual borrowing in academic writing. The theory used is the theory of perception, plagiarism, perception of plagiarism, writing, and English Foreign Language (EFL) class. The method used is qualitative with descriptive data analysis. The findings indicate that: (1) students' perceptions of plagiarism can be said to be quite good. This is because students already have the right understanding and meaning related to plagiarism. Students understand that plagiarism is a negative action of plagiarizing the work of others. However, students do not understand if plagiarizing their writing is also included in the act of plagiarism, that is self-plagiarism. (2) Students' perceptions do not guarantee a level of plagiarism practices. This is because this perception of plagiarism has less impact on the practice of plagiarism of ideas and word-for-word. However, this perception of plagiarism has an impact on the practice of plagiarism of source and plagiarism of authorship. |