Singh, Narindar
Tata McGraw-Hill , 1982
Buku Teks
Kavanagh, Barry F., author
Pearson/Prentice Hall, 2006
Buku Teks
Nathanson, Jerry, author
Pearson/Prentice Hall, 2006
Buku Teks
Som, P.
Tata McGraw-Hill, 1985
Buku Teks
Punmia, B.C., author
Laxmi Publ., 1989
Buku Teks