Shipley, Todd G., author
Steven Elliot, 2014
eBooks
Delaney, Carol., author
Wiley Balckwell, 2017
Buku Teks
Lawrence R. Frey...[et al.]
Prentice-Hall, 1991
Buku Teks
Barua, Yogesh, author
Dominant Publishers and distributors, [2001;2001;2001, 2001]
Buku Teks
Marthinus, Pierre, author
UI-Press, 2012
Buku Teks