Kwang-Kuo, Hwang, author
Springer, 2012
eBooks
Nadel, S.F. (Siegfried Frederick), author
The Free Press of Glencoe, 1964
Buku Teks
Allyn and Bacon, 1991
Buku Teks
Nadel, S.F. (Siegfried Frederick), author
Cohen & West, 1969
Buku Teks
Reamer, Frederic G., author
Columbia University Press, 1993
Buku Teks