Bosmans, J.L.J. “H. Daalder, Vier Jaar Nachtmerrie. Willem Drees 1886-1988. De Indonesische Kwestie 1945-1949”. BMGN - Low Countries Historical Review, vol. 121, no. 1, Jan. 2006, pp. 166-9, https://doi.org/10.18352/bmgn-lchr.6380.