Kumar, Nirmal
Bharatiya Vidya Bhavan, 1979
Buku Teks SO
Ghoshal, U.N.
Orient Longman, 1957
Buku Teks SO
Woodroffe, John, Sir
Ganesh & Co., 1919
Buku Teks SO
edited Edward H. Spicer
University of Chicago Press, 1961
Buku Teks SO
Gupta, Moti Lal
Agam Kala Prakashan, 1982
Buku Teks SO