Wuttisela K, Jarujamrus P, Chairam S, Supasorn S. Small-scale and Smartphone-based Colorimetric Experiments to Enhance Grade-11 Students’ Conceptual Understanding of Chemical Equilibrium. jpii [Internet]. 2024 Nov. 30 [cited 2025 Dec. 12];13(4). Available from: https://journal.unnes.ac.id/journals/jpii/article/view/14690