valiant lucky, Asriyanik, Mohamad Ridwan. Aplikasi APLIKASI E-LEARNING BERBASIS WEB DENGAN METODE WATERFALL STUDI KASUS : SMA 1 NAGRAK: E-learning. Juritek [Internet]. 2022 Nov. 23 [cited 2024 Nov. 26];2(3):198-207. Available from: https://ejurnal.stie-trianandra.ac.id/index.php/JURITEK/article/view/539