Bello, Ignacio, author
McGraw-Hill, 2006
Buku Teks
Drooyan, Irving, author
John Wiley & Sons, 1982
Buku Referensi
McCully, Roland C., author
Harcourt Brace Jovanovich, 1979
Buku Teks
Zuckerman, Martin M., author
John Wiley & Sons, 1980
Buku Teks
Carman, Robert A., author
John Wiley & Sons, 1980
Buku Teks