'40 Tahun PKI', compiled by the PKI History Institute (Lembaga Sejarah PKI) for the party's 40th anniversary, Yayasan Pembaruan, Jakarta 1960, following D.N. Aidit's 'Lahirnya PKI dan perkembangannya'. A party-line history from the 1920 founding through the 1926 uprising, Japanese occupation, revolution and the VI Cong
Neue Zürcher Zeitung, 24 April 1965, long analytical article 'Aidit and Indonesian Communism: on the springboard to power'. It reviews the Indonesian crisis, PKI history from 1920 through Madiun 1948, Aidit's rise and biography. Gerwani appears once, as a PKI front organisation with 1.5 million members, alongside SOBSI
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.