Moh. Alwi Yusron, Saiful Anwar, H. Umami, Muhammad Haikal, and Idam Mustofa, “Integration of Direct Instruction Methods and Independent Learning Curriculum in the Teacher Training and Development Program (TTDP) at Darussalam Gontor University”, Educan, vol. 8, no. 2, pp. 270–279, May 2026.