Poirier, Frank E., author
Burgess Publishing, 1974
Buku Teks
Nelson, Harry, author
West Publishing, 1988
Buku Teks
Stein, Philip L., author
McGraw-Hill, 1982
Buku Teks
Pope, Geoffrey, author
Rajawali, 1984
Buku Teks
Park, Michael Alan, author
Mayfield Publishing company, 1998
Buku Teks