Vonari, Ica Vonari, Suandi Sidauruk, and Nopriawan Berkat Asi. “The Analysis of High School Students’ Difficulties in Understanding the Concept of Chemical Bonding (Systematic Review)”. Jurnal Ilmiah Kanderang Tingang 15, no. 2 (December 31, 2024): 433-442. Accessed August 24, 2025. https://chem-upr.education/ojs/index.php/JIKT/article/view/298.