Chairuddin Siregar, and Irdian Ningsih. “THE INFLUENCE OF TEACHING MATERIALS DEVELOPMENT ON STUDENT UNDERSTANDING IN CLASS VII ISLAMIC RELIGIOUS EDUCATION SUBJECTS AT IT MIDDLE SCHOOL. AN-NAFIS TELUK MENGKUDU DISTRICT SERDANG BEDAGAI DISTRICT”. MORFAI JOURNAL 1, no. 2 (January 31, 2022): 488–496. Accessed November 15, 2024. http://radjapublika.com/index.php/MORFAI/article/view/843.