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
UK Foreign Office file FO 371/180326 (Feb-Aug 1965): embassy telegrams, letters and Antara extracts on the PKI's growth before the coup: its 45th anniversary, Aidit's speeches, Mao's greeting, Sino-Soviet positions and Sukarno's leftward drift. Gerwani items: Antara of 9 June reports Sukarno addressing Gerwani, chaired
FBIS Daily Report page (8 Apr 1965; HathiTrust scan p.251, North Vietnam section): continuation of the VNA volunteer report. Contains the passage that about 100 women volunteers led by Mrs Umi Sardjono, president of the Indonesian Women's Movement, went to the DRV Embassy and NFLSV office on 4 April, including wives of