Fadly Pratama, Z., Novita Br. Ginting, and Safaruddin H. Al Ikhsan. “WEB-BASED E-DOCUMENT INFORMATION SYSTEM”. Jurnal Mantik, vol. 5, no. 3, Nov. 2021, pp. 1963-77, https://iocscience.org/ejournal/index.php/mantik/article/view/1563.