Zimmer, Heinrich
Meridian Books, 1956
Buku Teks
Bernard, Theos
Philosopical Library , 1947
Buku Teks
Dover Publications, 1969
Buku Teks
Dasgupta, Surendranath
Indian Council of Philosophical Research , 1991
Buku Teks
Radhakrishnan, S. (Sarvepalli), 1888-1975
George Allen and Unwin, 1930
Buku Teks