Arthamena, Vegha Dwi, et al. “Development of E-LKPD Using POE-Based Liveworksheets on Acid-Base Concept”. Hydrogen: Jurnal Kependidikan Kimia, vol. 11, no. 1, Feb. 2023, pp. 1-7, doi:10.33394/hjkk.v11i1.5596.