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
Java-Bode, 18 March 1954, p. 2: short item on two rival committees for 1 May Labour Day in Binjai, East Sumatra: one uniting Sobsi, Sarbupri, Gerwis, Pemuda Rakjat and similar bodies, chaired by Sobsi, and a non-Sobsi committee of PPPRI, OBPI, Perbupri and PGRI.
WIDF Information Bulletin no. 10/1958 report on Gerwani since its Third Congress (December 1957): regional conferences, new constitution (branches replace workplace branches, 20-member minimum), plan to double membership, campaign for a national marriage law against polygamy with Sumari (PNI) and Mudigdio (PKI) MPs in