Sa`adah K. Efektivitas Model Problem Based Learning Berbantuan Media Ular Tangga terhadap Kompetensi Siswa Sekolah Dasar. basicedu [Internet]. 2025 Nov. 23 [cited 2026 Feb. 4];9(6):1868-80. Available from: https://jbasic.org/index.php/basicedu/article/view/10760