Indische Courant, 15 Sep 1951, p. 1 (Peking invitation; Partai Wanita Rakjat congress)
Full newspaper page, Indische Courant voor Nederland, 15 Sep 1951. Relevant: Mrs Trimurti of Gerwis accepts invitation to Peking; Surabaya arrests of Chinese residents and journalists; congress of the Partai Wanita Rakjat (chair Sri Mangunsarkoro) on women's status, monogamy, polygamy, birth control. Other articles unr
CIA report, 6 May 1954: Financial preparations for the Gerwis congress, March 1954
CIA report, 6 May 1954: Trimurti and Dr Thung Sin Nio collecting funds to finance the Gerwis (now Gerwani) congress in Jakarta, 25-31 March 1954, including from Chinese-Indonesian donors. Evidence on congress financing and cross-community support.
History of Gerwis and the emergence of Gerwani (detikNews, 2013)
detikNews feature (2013) on Gerwis's founding on 4 June 1950 by six organisations (Rupindo, Persatuan Wanita Sedar, Istri Sedar, Gerwindo, Wanita Madura, PPRI) and founders Trimurti, Salawati Daud, Umi Sardjono, Tris Metty and Sri Panggihan, with I.G.A.A. Ratih. Concise account of origins.