edited by Donald D. Wood
Emerald, 2016
eBooks
edited by Andreas Bandak and Lars Hojer
John Wiley & Sons, 2015
Buku Teks SO
Willis, James F.
North West Publishing, 2002
Buku Teks
Hollander, Stanley C.
Michigan State University , 1960
Buku Teks
Norman, Donald A.
W.H. Freeman, 1975
Buku Teks SO