Rambe RJ, Yusuf I. IMPLEMENTASI METODE PROBLEM BASED LEARNING DALAM MATA PELAJARAN MATEMATIKA DI SDI COKROAMINOTO BALIKPAPAN. Sindoro [Internet]. 2025 Jan. 10 [cited 2025 Jul. 13];11(10):71-80. Available from: https://ejournal.warunayama.org/index.php/sindorocendikiapendidikan/article/view/10172