Harianto Andi Ma’tu, Sahrul Saehana, supriyatman. Student’ Conceptual Difficulties about Electron Transitions in Bohr and Quantum Models. J. Riset Pend. MIPA [Internet]. 2025Jun.30 [cited 2026Nov.9];9(1):1-7. Available from: https://new.jurnal.untad.ac.id/index.php/jrpm/article/view/381