Participant observation
Participant observation: a methodology for human studies Danny L. Jorgensen
Publisher: Newbury Park, Calif. : Sage, 2004
ISBN: 0761926801
DDC: 300
Edition: (hft.)
Society and social science
Society and social science: a reader
edited by James Anderson and Marilyn Ricci
Publisher: Open U.P., 1990.
ISBN: 0749200618
DDC: 300