Singer, Ferdinand L., author
Erlangga, 1985
Buku Teks
Tripathi, Rajesh, author
S.S. Mubarak Brothers, 1996
Buku Teks
Cerny, Ladislav, author
McGraw-Hill, 1981
Buku Teks
Peterson, Aldor C., author
Allyn and Bacon, 1981
Buku Teks
Snyder, Robert D., author
McGraw-Hill, 1973
Buku Teks