Miner, John B., author
McGraw-Hill, 1992
Buku Teks
Spector, Paul E., author
Jones & Bartllett, 2012
Buku Teks
Bass, Bernard M., author
Allyn and Bacon, 1973
Buku Teks
Dipboye, Robert L., author
Harcourt Brace College, 1994
Buku Teks
Riggio, Ronald E., author
Pearson, 2009
Buku Teks