Aneta item in De Vrije Pers (31 Jul 1951): on SOBSI's initiative a "17 August" committee was formed in Yogyakarta with trade unions, Front Pemuda, PKI, PSII, Murba, BTI and Gerwis, as an alternative to the city administration's committee, which SOBSI said would only "celebrate a feast".
De Vrije Pers fragment (17 Sep 1953) on trade-union reactions to the Sarbupri plantation workers' strike. It notes that the BTI's second congress, attended by SOBSI, Pemuda Rakyat and Gerwis representatives, declared solidarity with the strike and instructed its branches to support strikers.
De Vrije Pers local-news column (16 Jan 1954, Malang). Relevant item: Gerwis Malang town and regency branches elected new boards, with Mrs. Sudiro as town chairwoman and Mrs. Ismail as regency chairwoman, listing officers for organisation, labour and agriculture, social affairs, and information and education, and their