Gaya APA

Neuman, ., Neuman, W, L. (1999). Social Research Methods : Qualitative and Quantitative Approaches (Cet.1). Boston: Library of Congress Cataloging.

Gaya MLA

Neuman, ., Neuman, W., Lawrence. "Social Research Methods : Qualitative and Quantitative Approaches". Cet.1 Boston: Library of Congress Cataloging, 1999. Text.