H. Reenders, Alternatieve zending. Ottho Gerhard Heldring (1804-1876) en de verbreiding van het christendom in Nederlands-Indië. BMGN - Low Countries Historical Review, [S. l.], v. 109, n. 2, p. 292–293, 1994. DOI: 10.18352/bmgn-lchr.3851. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104428.. Acesso em: 22 nov. 2024.