Ploeger, Jan. “Die Militêre Boukuns in Die Nederlande En Sy Eertydse Kolonies (1500-1800)”. Scientia Militaria - South African Journal of Military Studies 2, no. 2 (February 28, 2012). Accessed April 20, 2024. https://scientiamilitaria.journals.ac.za/pub/article/view/968.