Whitfield, John, author
EPA Press, 1995
Buku Referensi
editor, Robert H. Perry
McGraw-Hill, 1976
Buku Referensi
edited by Sheldon S.L. Chang
John Wiley & Sons, 1983
Buku Referensi
edited by Lyle F. Albright
CRC Press, 2009
Buku Referensi
edited by Gavriel Salvendy
John Wiley & Sons, 1982
Buku Referensi