McKenzie, James F., author
Pearson, 2013
Buku Teks
McKenzie, James F., author
Pearson Higher Education, 2017
Buku Teks
Yura, Helen, author
Appletton-Century-Croft , 1983
Buku Teks
Hawe, Penelope, author
Maclennan , 2000
Buku Teks
Bartholomew, L. Kay
Jossey-Bass, 2011
Buku Teks