Putri, Reyna Miftahud Daroeni, and Bertha Yonata. “Feasibility of Discovery Learning Based Student Worksheets on Acid-Base Materials to Practice Critical Thinking Skills”. Hydrogen: Jurnal Kependidikan Kimia 12, no. 5 (October 31, 2024): 1134–1145. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/hydrogen/article/view/13134.