Werkman, Paul E. “Marie-Anne De Harder, Albertinus Van Der Heide (1872-1953). Rode Dominee Tussen Pastoraat En Parlement”. BMGN - Low Countries Historical Review, vol. 127, no. 3, Oct. 2012, p. review 42, https://doi.org/10.18352/bmgn-lchr.8092.