Damayanti V, Novita D. Development Problem-BasedLearning Oriented E-worksheet To Train Analytical Skills On Chemical Equilibrium Material. HJKK [Internet]. 2024 Jul. 18 [cited 2025 Nov. 21];12(3):544-61. Available from: https://ojspanel.undikma.ac.id/index.php/hydrogen/article/view/12189