De Waarheid, 2 May 1952, p. 3: dispatch on May Day demonstrations across Indonesian cities by committees including SOBSI, Pemuda Rakjat and the women's organisation Gerwis; Jakarta rally at Merdeka Square. Reports government attempts to prevent them, including bans in Surabaya on discussing germ warfare and carrying po
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.