Edge, Raymond S., author
Cengage Learning, 2018
Buku Teks
Harris, Dean M., 1951-, author
Jossey-Bass, 2011.
Buku Teks
edited by Eileen E. Morrison, Beth Furlong
Jones & Bartlett Learning, 2014
Buku Teks
Seedhouse, David, author
Sage Publications, 2019
eBooks
Mooney, Gavin H., author
Prentice-Hall, 1992
Buku Teks