Rahayu, Sri. “Improving Problem Solving Ability Tolerance in Diversity Material through Project-Based Learning in Class VII.3 of SMP Negeri 2 Parungpanjang”. JURNAL KAJIAN ISLAM MODERN 5, no. 01 (June 2, 2019). Accessed October 18, 2025. http://jurnal-inais.id/index.php/JKIM/article/view/158.