Thomas, Henry
The Living world of philosophy
Blakiston, 1946
 Buku Teks SO
Christensen, Kit R.
Philosophy and choice : selected readings from around the world
McGraw-Hill, 2002
 Buku Teks
Ideological differences and world order: studies in the philosophy and science of the world's cultures
edited by F.S.C. Northrop
Yale University Press, 1949
 Buku Teks SO
Iannone, A. Pablo
Dictionary of world philosophy
Routledge, 2001
 Buku Referensi
The world of philosophy / edited by C.A. Qadir
Reader in Philosophy, University of The Panjab, 1965
 Buku Teks SO