Gaya APA

H, F., Mertens, O, S. (1995). How To Conduct Interviews By Telephone An In Person The Survey Kit 4 . California: Sage Publication.

Gaya MLA

H, Frey,James., Mertens, Oishi, Sabine. "How To Conduct Interviews By Telephone An In Person The Survey Kit 4". California: Sage Publication, 1995. Text.