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, 16 Jan 1952, p. 5: correspondent report from Surabaya on Gerwis's annual congress (Dec 1951), whose main resolution demands a marriage law setting minimum ages (men 20, women 17) against widespread child marriage, and giving local women's organisations the role of monitoring compliance and prosecuting viol
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