edited by Randall S. Schuler and Susan E. Jackson
Blackwell, 1999
Buku Teks
Greenlaw, Paul S., author
Harper & Row, 1986
Buku Teks
edited by V. Anantaraman, Chong Li-Choy, Stanley Richardson, Tan Chwee Huat
Singapore University Press, 1984
Buku Teks
Sikula, Andrew F., author
Wiley, 1976
Buku Teks
Greer, Charles R., author
Prentice-Hall, 2001
Buku Teks