Mursidah's 2012 survey of Indonesian women's organisations as a 'feminist movement', from Kartini to the New Order and left activism today; about two pages on Gerwani. Thin general overview.
Ipong Jazimah's 2016 biographical sketch of S.K. Trimurti (1912-2008): journalist, labour minister, Gerwis co-founder, Petisi 50 signatory. Pages 50-51 cover Gerwis's founding; relies on a few secondary sources.
2019 history thesis (UNY) by Dimas Dwi Kurnia on Gerwani's role in the West Irian campaign 1950-63: 1951 and 1957 congress resolutions, the 1957 charter with the army-youth body BKSPM, 1960 statement for 710,000 members and the 1962 volunteer call. Key source on Gerwani and West Irian.