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
Het Nieuwsblad voor Sumatra (25 Jul 1953, p.2): a delegation of SOBSI, Pwbebsi, Komité Rakjat, LPPI and Gerwis, led by Munir of SOBSI, handed Parliament's speaker a resolution from a Jakarta mass meeting demanding an 'anti-DI cabinet' and a decree declaring Darul Islam an enemy of the state. The delegation was received
Java-Bode, 4 April 1956, p. 2: handover of parliament's chair to Mr Sartono. A letter announces the new 'Pembangunan' faction (chairs Suprapto and Abdulhajat; secretary Hartojo) whose members include Umi Sardjono; the paper notes it consists of persons nominated by the PKI in the general elections.
De Nieuwsgier parliamentary report (16 Nov 1956) on the debate over resolutions on Soviet "interference" in Hungary (Anwar Harjono) and an appeal to the UN (Adam Malik). Umi Sardjono (listed Pembangunan faction) spoke against the Anwar resolution; it passed 102 to 29, the Malik motion 71 to 0.