De Nieuwsgier report (31 May 1955, p. 2) on a PKI anniversary/election rally in Jakarta where Aidit spoke. Mrs. Oemi Sartono (Umi Sardjono), described as a non-party Gerwani member, said she chose the PKI because it is a choice of being for or against the people; non-party candidate Astrawinata also spoke.
De Locomotief, 1 June 1955: report of a PKI mass meeting in Jakarta where Aidit backs the Ali cabinet and urges peaceful election campaigning. Mrs Umi Sardjono, introduced as a non-party Gerwani member and PKI candidate, says she chose the PKI because it is a choice of being for or against the people. Date: the party's
De Waarheid, 21 Sep 1955, p. 5: air-mail report on the PKI's 1955 election campaign: Aidit speaking to 700,000 in Yogyakarta, 550,000 in Semarang, Njoto and Lukman elsewhere. In Jakarta, Umi Sardjono, chair of Gerwani, explained why she stands as a non-party candidate on the PKI list, saying its programme matches the d
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.