De Waarheid, 16 Jan 1952, p. 4: report on workers' protests against Sjahrir's PSI splitting unions (the Perbupri breakaway from SOBSI's plantation union Sarbupri in Jember). A closing section says the Gerwis annual congress in Surabaya unanimously demanded abolition of the Round Table Agreement and return of New Guinea
De Waarheid, 18 Nov 1953, p. 5: short report that the West Java branches of Gerwis ended a two-day conference in Bandung, adopting a resolution demanding that the government draft a new marriage law quickly and set minimum labour conditions for women workers. Same item notes a SARBUPRI strike of about 200 workers at th
De Waarheid, 27 Jan 1954, p. 5: correspondent's Jakarta feature ahead of Gerwis's second congress (opening 26 March 1954), describing its literacy courses, hygiene campaigns, defence of women under customary law, wage struggles (Sampurna cigarette factory Surabaya, Kaliklatak coffee estate) with SARBUPRI, and the mass