Rani Safitri, Sanjaya, Eka Ad’hiya, Andi Suharman, and M. Hadeli. 2024. “Development of Polymer E-Modules in Solution, Solids, and Amorphous Based on Problem-Based Learning”. Orbital: Jurnal Pendidikan Kimia 8 (2): 153-65. https://doi.org/10.19109/ojpk.v8i2.24611.