JTL: Jurnal Teknologi Lingkungan Editorial board recognizes that plagiarism is not acceptable and therefore establishes the following policy stating specific actions (penalties) upon identification of plagiarism/similarities in articles submitted for publication in JTL: Jurnal Teknologi Lingkungan. The journal will use Turnitin's originality checking software as the tool in detecting similarities of texts in article manuscripts and the final version articles ready for publication. A maximum of 20 % of similarities is allowed for the submitted papers. Should we find more than 20 % of the similarity index, the article will be returned to the author for correction and re-submission.