Artikel Jurnal
Carney, Jan K.
Jones Bartlett Learning, 2016
Buku Teks
edited by Cathy E. Lloyd ... [and others]
SAGE Publications, 2007
Buku Teks
editors, Lester Breslow, Jonathan E. Fielding, Lester B. Lave
Annual Reviews, 1990
Buku Teks
Berridge, Virginia
McGraw-Hill, 2011
Buku Teks