Gaya APA

Social research methods : qualitative and quantitative approaches / W. Lawrence Neuman. (1999). Needham Heights, MA: Allyn and Bacon, c.

Gaya MLA

Social research methods : qualitative and quantitative approaches / W. Lawrence Neuman. 4th ed.. Needham Heights, MA: Allyn and Bacon, c, 1999. Buku Umum.