edited by P.J.D. Drenth ... [and others]
Wiley, 1984
Buku Teks
Aamodt, Michael G., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Blum, Milton L., author
Harper & Brothers , 1956
Buku Teks
Blum, Milton L., author
Harper & Row, 1968
Buku Teks
Aamodt, Michael G., author
Thomson/Wadsworth, 2004
Buku Teks