Susan Blackburn's 2004 book on how Indonesian women's organisations and the state interacted over education, marriage, suffrage, polygamy, motherhood, work and violence from the colonial period to 2003. Standard background, with Gerwani as one actor.
Hirano Keiko's Japanese article (2005) on the historical formation of 'ibuism', arguing the supposedly priyayi tradition was produced under colonial rule through the conflict over the 1937 monogamous marriage bill. Context on gender ideology and marriage law; Gerwani marginal.
Ruth Indiah Rahayu's 2017 essay contrasting pre-G30S state instructions on women's organisations: the Army's domestication ('koncowingking', Panca Dharma Wanita) versus radicalisation tied to revolution, locating Gerwani's politics against the militarist model. Interpretive essay.
FES-published study (2018) by Gadis Arivia and Nur Iman Subono arguing Indonesian feminism has local roots; one page on Gerwani, then New Order state women's organisations and Reformasi (Suara Ibu Peduli, Komnas Perempuan). Overview of feminist history.