[1]
H. H. Khairunnisa, S. . Sari, and Y. . Sukmawardana, “Application of Project-Based Worksheets on the Utilization of Rice Husk Charcoal Adsorbent to Reduce Groundwater Hardness in Develoving Students’ Scientific Performance”, Int. J. Chem. Educ. Res., vol. 9, no. 2, pp. 93–107, Oct. 2025.