Lenk, John D., author
McGraw-Hill, 1991
Buku Teks
Ludwig, Ernest E., author
Gulf Publishing Company, 1964
Buku Teks
Ludwig, Ernest E., author
Gulf Publishing Company, 1964
Buku Teks
Ludwig, Ernest E., author
Gulf Publishing, 1979
Buku Teks
Ludwig, Ernest E., author
Gulf Publishing Company, 1965
Buku Teks