Christensen, L. B. (2015). Research methods, design, and analysis. Boston: Pearson.
Trích dẫn kiểu ChicagoChristensen, Larry B. Research Methods, Design, and Analysis. Boston: Pearson, 2015.
MLA CitationChristensen, Larry B. Research Methods, Design, and Analysis. Boston: Pearson, 2015.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.