Sukarno and Sukarno, orator, “Amanat PJM Presiden Sukarno pada Musjawarah Kerdja Ke-II Departemen Perkebunan di Istana Negara, Djakarta, 31 Djanuari 1966,” Monash Collections Online, accessed August 8, 2022, https://repository.monash.edu/items/show/12285.