J. R. Sirait, A. S. Rizki, A. F. Zulfahri, D. A. Wibowo, N. M. Aristi, and M. N. Ridha, “The Waterfall Method in Designing Information Management Applications Tri Dharma Lecturer ”, Mantik, vol. 6, no. 3, pp. 3722-3729, Nov. 2022.