edited by Thomas M. Paikeday
Holt, Rinehart and Winston, 1976
Buku Referensi
Gas, Beverly Witter Du, author
Prentice-Hall, 1999
Buku Teks
Du Gas, Beverly Witter, author
Prentice-Hall, 1999
Buku Teks
Whiteson, Leon, author
Hurtig Publishers, 1983
Buku Teks
Leonard, William G., author
McGraw-Hill Company , 1963
Buku Teks