Rozahi Istambul, Muhammad, Hari Supriadi, and . . “Evaluation of Blended Learning Implementation Which Is Conditioned to Optimize the Mastery of Student Knowledge and Skills”. International Journal of Engineering and Technology 7, no. 4.33 (December 9, 2018): 195–200. Accessed February 23, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/23558.