Setuju, S, Bayu Rahmat Setiadi, Dianna Ratnawati, Asri Widowati, Astuti Wijayanti, Arif Bintoro Johan, Hasti Robiasih, and Heri Nurdiyanto. 2018. “Development E-Learning to Improve Student Activity With Technological Pedagogical and Content Knowledge”. International Journal of Engineering & Technology 7 (2.5): 100-103. https://doi.org/10.14419/ijet.v7i2.5.13961.