Silaban YP. Pengaruh Pelayanan Peter Hinrich Johannsen di Seminari Pansurnapitu terhadap Modernisasi Akal Budi Masyarakat Batak 1877-1898. JTVD [Internet]. 2026 Mar. 31 [cited 2026 Jul. 18];1(1). Available from: https://www.backup33ejurnal.stthkbp-pematangsiantar.ac.id/index.php/JTVD/article/view/10