Susanti, L. Y., R. E. Fadilah, M. H. Khirzin, and R. Hasanah. “Development Of A Basic Chemistry E-Book Enhanced With Multiple Representations And STEM Activities ”. Koordinat Jurnal MIPA, Vol. 6, no. 1, July 2025, pp. 82-95, doi:10.24239/koordinat.v6i1.159.