Pfeiffer, John E., author
McGraw-Hill , 1977
Buku Teks
Childe, Gordon, author
Penguin Books, 1958
Buku Teks
Kuhn, Herbert, author
Random House, 1955
Buku Teks
Scheele, William E., author
World Publishing, 1957
Buku Teks
Murray, Raymond W., author
Bruce Publishing, 1943
Buku Teks