An artist in Java and other Islands of Indonesia - Poortenaar, Jan (Singapore : Oxford University Press, 1989)
'Originally published as An artist in the topics, by Sampson Low...London 1928.'
'Geertruida van Vladeracken-Poortenaar's place is by right upon the title-page of this book.'
Keywords: Malay Archipelago -- Description and travel; Java (Indonesia) -- Description and travel