Artikel Ny. Umi Sardjono dan pidato Ny. Mudigdio di DPR; Gerwani pertahankan cuti haid (Harian Rakjat, 7 Maret 1957, hlm. 3)
Umi Sardjono article and Mudigdio speech in parliament; Gerwani defends menstrual leave (Harian Rakjat, 7 March 1957)
Harian Rakjat, 7 Mar 1957, p. 3: includes an article by Ny. Umi Sardjono for International Women's Day on women's struggle and rights (alongside a science piece), a DPR report with Ny. Mudigdio (PKI) speaking on 6 March, and Gerwani branch items. Notes 46 organisations including Gerwani opposing abolition of menstrual