Rasyid, Sahrul, Ucuk Darusalam, and Sari Ningsi. “Lecture Duty Submission System In National University: Lecture Duty Submission System In National University”. Jurnal Mantik 3, no. 4 (February 4, 2020): 484-491. Accessed June 10, 2026. https://www.iocscience.org/ejournal/index.php/mantik/article/view/602.