Silalahi, D.W. und Silitonga, B.N. 2025. An Analisis Pedagogical Content Knowledge (PCK) Mahasiswa Pendidikan Guru SD terhadap Materi IPA melalui Instrument Content Representation (CoRe) dalam Konteks Pendidikan Kristen. Diligentia: Journal of Theology and Christian Education. 7, 3 (Sep. 2025), 232–242. DOI:https://doi.org/10.19166/dil.v7i3.10255.