Rasyid, S., Darusalam, U. and Ningsi, S. (2020) “Lecture Duty Submission System In National University: Lecture Duty Submission System In National University”, Jurnal Mantik, 3(4), pp. 484-491. Available at: https://iocscience.org/ejournal/index.php/mantik/article/view/602 (Accessed: 4May2026).