Het Vaderland front-page report (20 Aug 1951) on the escalating arrests of communists across Indonesia: 26 in East Java including Java Post editor Go Tjing Hok, the local PKI chair and SOBSI leaders, and Mrs Parjani Ilham, chair of the women's organisation 'Gerwis'; 50 in Bandung with SOBSI offices sealed; 175 in East
Nieuwe Haarlemsche Courant, 20 August 1951: reports the August 1951 mass arrests in East Java (the 'Razzia Agustus') of 26 people in Surabaya including journalists, PKI local chair Hutapea, Sobsi's Surono and Sutomo, and the Gerwis chairwoman Mrs Parjani Ilham; 175 more arrested in Malang, Bojonegoro, Madiun and Kediri
Trouw (20 Aug 1951) on the August 1951 arrests: 26 detained in East Java including journalists, the PKI branch chairman, SOBSI unionists and Gerwis chairwoman Mrs Parjani Ilham; 50 communists arrested in Bandung and SOBSI offices sealed. Attorney General warns of tighter press control; 17 August passed quietly.
CIA Office of Current Intelligence Special Report SC 00642/64A, 'Sukarno and the Communists' (23 Oct 1964, Secret; declassified 1975). Analyses Sukarno's mutual exploitation with the PKI and Aidit's strategy; lists PKI front membership claims, including Gerwani at almost two million, beside BTI, SOBSI, Pemuda Rakjat an
US Embassy telegram 1168, 23 Oct 1965: anti-communist unions demand dissolution of the PKI and SOBSI from Labour Minister Sutomo, who hesitates; Army liaison approached. Labour-front context; no Gerwani content.