De Waarheid, 10 Mar 1954, p. 5: excerpt from Umi (Sardjono) describing how the NVB received Gerwis's invitation to its congress with joy, sending a delegation and running a friendship campaign and a soap-selling drive (soap printed with Dutch and Indonesian hands) to strengthen solidarity and support Indonesia's demand
Renmin Ribao, 16 Dec 1961, p. 3 (Xinhua, Jakarta): Gerwani's Fourth National Congress opens on 14 Dec with over 400 delegates; Umi Sardjono's opening address stresses the 1945 revolution's aims and West Irian. Guests include Chinese, Soviet and East German delegations, Aidit and PNI's Sidik. Sukarno speaks, rejecting '
De Waarheid, 20 Sep 1975, p. 3: article asking what the Indonesian parliamentary delegation did not mention: Plantungan women's camp in Central Java (386 women), Bukit Duri and Semarang prisons, and named women prisoners: Umi Sardjono, chair of the underground Gerwani, vice-chairs Salawati Daud and Mudigdio, Maasje Siw