Tohutoro APA (7th ed.)
Olsen, W. (2012). Data collection: Key debates and methods in social research. Sage.
Tohutoru Kātū Chicago (17th ed.)
Olsen, Wendy. Data Collection: Key Debates and Methods in Social Research. Los Anheles: Sage, 2012.
Tohutoro MLA (9th ed.)
Olsen, Wendy. Data Collection: Key Debates and Methods in Social Research. Sage, 2012.
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