Ipong Jazimah's 2016 biographical sketch of S.K. Trimurti (1912-2008): journalist, labour minister, Gerwis co-founder, Petisi 50 signatory. Pages 50-51 cover Gerwis's founding; relies on a few secondary sources.
Tempo feature (2 Oct 2021) on how Umi Sardjono led Gerwani: Marx House courses, the 1945 Barisan Buruh Wanita with S.K. Trimurti, Gerwis founded at Semarang (3-6 June 1950, Tris Metty chair), Umi chair from 1954 when it became Gerwani. Cites 650,000 members and 179 kindergartens at the 1957 Solo congress, WIDF links, s
English-edition Tempo cover story 'End of the Road' (4 Oct 2021, Retno Sulistyowati), a translation from the Umi Sardjono special report. It traces Umi's formation in Pathuk Youth, Pesindo, BBW with S.K. Trimurti, Madiun 1948 arrest, founding of Gerwis (Semarang, 3-6 Jun 1950), Gerwani growth from 80,000 to 650,000 (19