Mulyadiprana, Ahmad, Ghullam Hamdu, and Ade Yulianto. “STEL (System Thinking and ESD Learning) Model : Developing Elementary School Students’ Systems Thinking Skills”. Jurnal Kependidikan 10, no. 4 (December 21, 2024): 1665–1674. Accessed September 29, 2025. https://ojspanel.undikma.ac.id/index.php/jurnalkependidikan/article/view/12861.