Het Nieuwsblad voor Sumatra (10 Mar 1954, p.2): in Binjai two committees were formed to organise May Day. The first unites SOBSI, Sarbupri, Gerwis, Pemuda Rakjat and similar groups under a SOBSI chair; the second comprises non-SOBSI organisations such as PGRI and Perbupri and regards itself a branch of the Medan commit
Straits Times, 14 Dec 1964 (lead only). A communist women's organisation, Gerwani, held a demonstration against the government in Medan, North Sumatra, the previous Wednesday, urging lower prices of common goods; Antara reported 'hundreds' of members took part.
PhD dissertation (Yale, 1967) by R. William Liddle, a political-science study of local parties and political integration in Simalungun regency and Pematangsiantar, North Sumatra, based on 1963-64 fieldwork. Gerwani appears in a few brief passages in ch. VI: listed among PKI mass organizations (p. 190), given no members
Waspada (Medan), 2 June 2001, p. 4: essay on abuses on North Sumatran plantations, observing that after 1965 estate women were 'ceaselessly shadowed by the stigma of Gerwani'.