Syafira, A., and E. Effendi. “Pengembangan LKPD Terintegrasi STEM-PBL (Science, Technology, Engineering, and Mathematics - Problem Based Learning) Pada Materi Hidrolisis Garam”. Entalpi Pendidikan Kimia, Vol. 1, no. 1, Nov. 2020, doi:10.24036/epk.v1i1.56.