Chatterjee, Pratap, author
Routledge, 1994
Buku Teks
Stokes, Susan Carol, author
Cambridge University Press, 2014
eBooks
Skinner, R. M., author
Sir Isaac Pitman, 1966
Buku Teks
Solomon, Cynthia, author
American Society for Training and Development Press;, 2004
eBooks
Sayle, Allan J., author
McGraw-Hill, 1981
Buku Teks