De Nieuwsgier, 17 Sept 1953: the Committee to Support Tunisia issues a manifesto backing Tunisia's freedom struggle against French policy, signed by many party leaders and organisations. S.K. Trimurti signs on behalf of Gerwis, with Maria Ulfah Santoso for Kowani and others for PNI, Masjumi, PSI, Parkindo. Shows Gerwis
CIA intelligence survey of the PKI's history, structure and front organisations, May 1955, before the September 1955 elections. Section III.E (report pp. 49-50) profiles Gerwani: founded 1950 as Gerwis, renamed Gerwani at the March 1954 congress, 25,000+ members, S.K. Trimurti general chairman and Umi Sardjono chairman
PhD dissertation (History, University of Washington, 2020) by Hongxuan Lin tracing the confluence of Islam and Marxism in the Netherlands East Indies and Indonesia, 1915-1959, through vernacular print culture; it genealogises Sukarno's NASAKOM. Gerwani appears only briefly: citing Blackburn, it says millions joined for