Pringgodigdo, Prof Mr Ag (1991). Ensiklopedi Umum (in Indonesian). Kanisius. p. 86. ISBN9789794135228. Archived from the original on 3 May 2016. Retrieved 21 July 2019.
Pringgodigdo, Prof Mr Ag (1991). Ensiklopedi Umum (in Indonesian). Kanisius. p. 86. ISBN9789794135228. Archived from the original on 3 May 2016. Retrieved 21 July 2019.
worldcat.org
Jenkins, David (2009). "Soeharto and the Japanese Occupation". Indonesia (88): 1–103. ISSN0019-7289. JSTOR40376486. p. 47