Hazra, B.
Dhanpat Rai and Sons, 1980
Buku Teks SO
Dhanpat Rai and Sons, 1980
Buku Teks
Shan K. Wang
McGraw-Hill, 1993
Buku Referensi
Jordan, Richard C. (Richard Charles), 1909-
Prentice-Hall, 1981
Buku Teks
Arora, C. P.
Tata McGraw-Hill, 1981
Buku Teks