Harian Neraca, 14 April 1989: 'Siapa menabur angin akan menuai badai' (87)
Harian Neraca serial 'Siapa menabur angin akan menuai badai' (87): South Blitar remnant base and formation of Trisula
Harian Neraca, 14 April 1989, p. 10: instalment 87 of Soegiarso Soerojo's serial. Army's view of the PKI remnant base in South Blitar (1967–68), the capture of Aidit's alleged adjutant Kusno and the formation of Trisula; Gerwani mentioned.