Kartamiharja, Momo Rosbiono, and Wahyu Sopandi. “Educative Curriculum Material and Its Impact on the Teachers’ Instructional Performance and Learners’ Achievement”. International Journal of Learning, Teaching and Educational Research 19, no. 1 (January 31, 2020): 206–230. Accessed May 16, 2026. https://ijlter.net/index.php/ijlter/article/view/503.