Mayer, J. Richard, author
McGraw-HIll, 2001
Buku Teks
M. Munandar Soelaeman, author
Eresco, 1992
Buku Teks
Rogers, Everett M., author
The Free Press, 1971
Buku Teks
Tan, Joo Seng, author
McGrawHill, 2004
Buku Teks
Znaniecki, Florian
University of Illinois Press, 1952
Buku Teks