Sukamto, S., Triyono, L., Hestiningsih, I., Mardiyono, M., & Rahardjo, P. (2018). RANCANG BANGUN SISTEM INFORMASI BUKU AJAR DARING BERBASIS WEB. SINTAK, 2. Retrieved from https://unisbank.ac.id/ojs/index.php/sintak/article/view/6673