Dunham, Kelli S., author
F.A. Davis Company, 2004
Buku Teks
Pirie, David B., author
Roetledge, 1985
Buku Referensi
Hally, M. Bernard Dette
Elsevier, 2009
Buku Teks
Pirie, David B.
Routledge, 1985
Buku Teks
Maizell, Robert E., author
John Wiley & Sons, 1979
Buku Referensi