Tambunan, Evenia, Sindi Clodia br Sitepu, Theresia Adhellia Witin, and Widya Arwita. “Analisis Penerapan Model Pembelajaran Problem Based Learning Pada Pelajaran Biologi Materi Sistem Ekskresi Kelas X SMA Negeri 4 Binjai: (Analysis of the Application of the Problem Based Learning Model in Biology Lessons on the Excretory System Material for Class High School 4 Binjai)”. BIODIK 10, no. 2 (June 3, 2024): 172-180. Accessed November 24, 2024. https://online-journal.unja.ac.id/biodik/article/view/33934.