Herman, A.L.
A brief introduction to Hinduism : religion, philosophy, and ways of liberation
Westview Press, 1991
 Buku Referensi
Ayer, Alfred Jules, 1910-1989
The revolution in philosophy
Macmillan, 1963
 Buku Teks SO
Bard, Kathryn A.
An introduction to the archaeology of ancient egypt
Blackwell Publishing, 2008
 Buku Teks SO
Waung, W.S.K.
Revolution and liberation : a short history of modern China, 1900-1970
Heinemann Educational, 1971
 Buku Teks SO
Patrick, George Thomas White
Introduction to philosophy
George Allen and Unwin, 1925
 Buku Teks SO