Arrigo, Bruce A., author
San diego, 2003
Buku Teks
Taylor, Sandie, author
Routledge, 2019
Buku Teks
BPS Blackwell, 2012
Buku Teks
Grover Maurice Godwin, editor
CRC press, 2001
Buku Teks
Wrightsman, Lawrence S., author
Wadsworth/Thomson Learning, 2001
Buku Teks