SILABAN, Y. P. Pengaruh Pelayanan Peter Hinrich Johannsen di Seminari Pansurnapitu terhadap Modernisasi Akal Budi Masyarakat Batak 1877-1898. Jurnal Teologi Vocatio Dei, [S. l.], v. 1, n. 1, 2026. Disponível em: https://ejurnal.stthkbp-pematangsiantar.ac.id/index.php/JTVD/article/view/10. Acesso em: 25 apr. 2026.