Khasanah, U.F. et al. 2019. ANALISIS KESULITAN BELAJAR KIMIA PERSERTA DIDIK KELAS XI IPA DI SMA YAPIS MANOKWARI. Arfak Chem: Chemistry Education Journal. 2, 1 (Jul. 2019), 77–84. DOI:https://doi.org/10.30862/accej.v2i1.74.