Asrul, A. and Lasaiba, M. 2022. Analisis Tingkat Pedagogical Content Knowledge (PCK) Guru SMP Negeri 21 Ambon. JENDELA PENGETAHUAN. 15, 1 (Apr. 2022), 38-45. DOI:https://doi.org/10.30598/jp15iss1pp38-45.