Gaya APA

Bogdan, R, C., Biklen, S, K. (1992). Qualitative Research for Education: An Introduction to Theory and Methods . USA: Allyn and Bacon, Inc..

Gaya MLA

Bogdan, Robert, C.., Biklen, Sari, Knopp. "Qualitative Research for Education: An Introduction to Theory and Methods". USA: Allyn and Bacon, Inc., 1992. Texts.