Gray, William S.
Prentiee-Hall, 1996
Buku Teks
Fay, Clifford T., Jr.,author
WM.C. Brown Comp., 1976
Buku Teks
DeFranco, Agnes L., 1961-
John Wiley & Sons, 2007
Buku Teks
Olsen, Michael D.
Prentice-Hall, 2008
Buku Teks
edited by Metin Kozak, Nazmi Kozak
Emerald, 2016
eBooks