Harris, Dean M., 1951-
Jossey-Bass, 2011.
Buku Teks
edited by Eileen E. Morrison, Beth Furlong
Jones & Bartlett Learning, 2014
Buku Teks
Seedhouse, David
Sage Publications, 2019
eBooks
Mooney, Gavin H.
Prentice-Hall, 1992
Buku Teks
Mooney, Gavin H.
Pearson Education, 2003
Buku Teks