Merdeka, 25 April 1951 (hlm. 2): plans for May Day 1951 by a central committee (SOBSI, KABM) assisted by the Peace Defence Committee, Lekra, Pemuda Rakyat, Sakti and Gerwis, framed as defence of world peace.
Issue 14 of Wanita Sedar, fortnightly organ of Gerwis (25 July 1951). Covers preparation for the first Gerwis congress (57 branches, WIDF links), the Indonesian delegation to the Berlin youth festival including three Gerwis delegates, women in Czechoslovakia, and organisational news.
Abadi, 8 Aug 1951, p. 2: separate left-wing 17 August committees under a 'peace programme' in Jakarta and Bandung, with Gerwis, SOBSI, Lekra and others in charge of the programme.
Merdeka, 8 Agustus 1951 (hlm. 2): mass organisations under the Peace Committee form their own 17 August committee with a 'peace programme', Gerwis and Lekra running the programme section.
Abadi, 4 Feb 1952, p. 2: provisional committee including Gerwis, Lekra and Pemuda Rakjat to celebrate 21 February 1952 world youth solidarity day.
Harian Rakjat, 3 May 1952. On p. 3 Suwarti, MP and general chair (ketua umum) of Gerwis, is listed among the Indonesians invited to join the preparatory committee for the Asia-Pacific Peace Conference, alongside Siauw Giok Chan, Ir. Setiadi and others. Pp. 2-3 also report May Day 1952 rallies where Gerwis marched with
Tempo.co explainer (29 Sept 2021) on organisations 'considered affiliated' with the PKI: Gerwani, Lekra, SOBSI, Pemuda Rakjat. It states, citing Wieringa, that Gerwis became Gerwani at its 1954 second congress, electing PKI member Umi Sardjono as chair. Short, background-level.