Harian Rakjat, 30 April 1953, hlm. 1 (edisi Hari Buruh)
Harian Rakjat, 30 April 1953, p. 1 (May Day edition)
Harian Rakjat, 30 April 1953, hlm. 1 (edisi Hari Buruh). Front page of the May Day special: CC PKI's May Day message, statements recalling 1952 demonstrations, the Tandjung Morawa 'death tractor' and a united May Day committee of seven federations; women appear only as supporting 'wanita' organisations.