Indramawan, Anik, and Suhartono Suhartono. “Academic Supervision Strategies in Problems Solving Teacher Performance On Language Learning”. Journal of Instructional and Development Researches 3, no. 6 (December 31, 2023): 272-278. Accessed July 18, 2025. https://journal.iel-education.org/index.php/JIDeR/article/view/264.