Rachmat, Noviyani, Tri Wahyu Agutina, and Asrianty Mas’ud. “Improvement of System Thinking Skills on Excretory System Subject”. Report of Biological Education 4, no. 1 (June 30, 2023): 24–31. Accessed December 5, 2024. https://jurnal.ummi.ac.id/index.php/rebion/article/view/2043.