Panikkar, K.M., author
George Allen and Unwin, 1951
Buku Teks
Coomaraswamy, Ananda K., author
Dover Publications, 1965
Buku Teks
Menon, V. P.
Macmillan, 1956
Buku Teks
Panikkar, K.M., author
Asia Publishing House, 1954
Buku Teks
Dasgupta, Surendranath, author
Cambridge University Press, 1955
Buku Teks