Palmer, Norman D.
The Indian political system
Houghton Mifflin, 1961
 Buku Teks SO
Palmer, Norman D.
The Indian political system
Houghton Mifflin, 1971
 Buku Teks SO
Sharma, Ram Sharan
Aspects of political ideas and institutions in ancient India
Motilal Banarsidass , 1991
 Buku Teks SO
Legge, John D.
Sukarno : a political biography
Allen Lane The Penguin Press, 1972
 Buku Teks SO
Legge, John D.
Sukarno : a political biography
Penguin Books, 1973
 Buku Teks