Abramowitz, Ava J.
John Wiley & Sons, 2002
Buku Teks
Todd, Maria K.
CRC Press, Taylor & Francis Group, 2011
Buku Referensi
Lewicki, Roy J.
Richard D. Irwin, 1985
Buku Teks
Roy J. Lewicki [and others]
McGraw-Hill, 2003
Buku Teks
Tracy, Brian
American Management Association, 2013
eBooks