Shekhar, K.C.
Vikas Pub. House, 1975
Buku Teks
Chlepner, B.S.
Bookings Institution, 1943
Buku Teks
edited by Benyamin Haggott Beckhart
Columbia Universary Press, 1954, 1956
Buku Teks
edited by Thomas M. Havrilesky and John T. Boorman
AHM Pub., 1980
Buku Teks
Holden, J. Milnes
Sir Isaac Pitman & Sons, 1960
Buku Teks