Feldman, Robert Stephen, 1947-
McGraw-Hill, 1989
Buku Teks
Norman, Kent L.
Cambridge University Press, 2017
Buku Teks SO
Handley, Holly A.H.
Springer Nature, 2019
eBooks
Bem, Daryl J.
Brooks/Cole, 1970
Buku Teks
Cascio, Wayne F.
Prentice-Hall, 1998
Buku Teks