Gaya APA

Jackson, S, L. (2012). Research Methods and Statistics : A Critical Thinking Approach 4'th Ed. (4). Asia: Wadsworth Cengage Learning.

Gaya MLA

Jackson, Sherri, L.. "Research Methods and Statistics : A Critical Thinking Approach 4'th Ed.". 4 Asia: Wadsworth Cengage Learning, 2012. Text.