Hermanson, Roger H., author
BPI Irwin, 1989
Buku Teks
compiled and arranged on an English alphabetical basis by W. E. Clason
Elsevier, 1978
Buku Referensi
Goshal, Kumar
Sheridan House Publisher, 1948
Buku Teks
Sarkar, Benoy Kumar
Oriental Books Reprint Corporation, , 1914
Buku Teks
Kumar, H.D.
House PVT LTD, 1992
Buku Teks