Sukarno and Sukarno, orator, “Amanat PJM Presiden Sukarno pada Perajaan Peringatan Hari Penerbangan Nasional di Lapangan Terbang Halim Perdanakusuma, Djakarta, 9 April 1965,” Monash Collections Online, accessed December 4, 2023, https://repository.monash.edu/items/show/12615.