Ross, Michael H.
Harper & Row , 1985
Buku Teks
Martin, John H.
Appleton & Lange, 1989
Buku Teks
Martin, John H.
Connecticut : Aplleton & Lange, 1989,
Buku Teks
Gartner, Leslie P., author
Lippincott Williams-Wilkins, 2014
Buku Teks
Telford, Sam R., author
CRC Press, 2009
Buku Referensi