Gaya APA

m.pd., D, I, N. (2003). Social Research Methods Qualitative And Quantitative Approaches Fifth Edition (Fifth Edition). New York: pearsen education.

Gaya MLA

m.pd., Dr., Ishaq, Nuryadin,. "Social Research Methods Qualitative And Quantitative Approaches Fifth Edition". Fifth Edition New York: pearsen education, 2003. Text.