Gwynneth Singleton ... [et al.]
Pearson, 2013
Buku Teks
edited by Ursula Gorham, Natalie Greene Taylor, Paul T. Jaeger
Emerald, 2016
eBooks
The Dushkin Publishing Group, Inc, 1987
Buku Teks
Magstadt, Thomas M., author
Wadsworth-Cengage learning, 2009
Buku Teks
Gil-Garcia, J. Ramon, author
[Springer, Springer], 2012
eBooks