Merdeka, 4 March 1957: 12 women's organisations back the President's Konsepsi
Merdeka, 4 Mar 1957, p. 3: twelve Surabaya women's organisations including Wanita Demokrat and Gerwani declare support for Sukarno's February 1957 Konsepsi, alongside veterans' groups.
Pewarta Soerabaia, 4 October 1957: Lumajang women's organisations federation
Pewarta Soerabaia, 4 Oct 1957, p. 4: Lumajang women's federation revived on 21 Sept 1957 by Wanita Demokrat, Aisyiyah, Gerwani, Bhayangkari and others, with a new board drawn from all except Gerwani.
Women in the first election (Historia, 2019)
Historia article (2019) on women's wings of parties in the 1955 election (Perwamu, Parkiwa, Wanita Demokrat, Aisyiyah, Bhayangkari), noting the PKI grew close to Gerwani and that Mudigdio and Umi Sardjono entered the DPR for the PKI. Context on Gerwani and elections.