Halik F, Suardi S, Gusti Acfira L, Sulaiman N. Validity, Practicality and Effectiveness of E-module Teaching Materials in the Learning Subject Applied Mathematics in Students. KEG [Internet]. 2024Mar.7 [cited 2024May16];6(1):155–163. Available from: https://knepublishing.com/index.php/KnE-Engineering/article/view/15364