U.N. Mahida
McGraw-Hill, 1981
Buku Teks
U.N. Mahida
Rajawali, 1986
Buku Teks
edited by Bill Cate
Directory Press, 1972
Buku Teks
Eckenfelder, William Wesley, 1926-
McGraw-Hill , 2000
Buku Teks
Eckenfelder, William Wesley, 1926-
McGraw-Hill, 1989
Buku Teks