Yulis, Putri Ade Rahma, and Oktariani Oktariani. “Need Analysis for Development (E-Module) of Analytical Chemistry Integrated With Environmental Analysis Research Results”. Hydrogen: Jurnal Kependidikan Kimia, vol. 12, no. 1, Feb. 2024, pp. 160-73, doi:10.33394/hjkk.v12i1.10601.