Gaya APA

Nasution, A, H., Ritzer, G, (. (2004). Handbook Of Social Problem: A Comparative International Perspective . USA : Sage Oublications, Inc..

Gaya MLA

Nasution, A., H.., Ritzer, George, (Editor). "Handbook Of Social Problem: A Comparative International Perspective". USA : Sage Oublications, Inc., 2004. Text.