Gawron, Valerie J., author
CRC Press, Taylor & Francis Group, 2008
Buku Referensi
edited by P.B. Kirti
CRC Press Taylor & Francis Group, 2008
Buku Referensi
edited by Douglas C. Greenwood
McGraw-Hill, 1961
Buku Teks
Bray, Richard Nicholas
Arnold, 1997
Buku Referensi
Emerick, Robert Henderson, author
McGraw-Hill, 1966
Buku Referensi