Creswell, John W.
Research design: qualitative & quantitative approaches - Thousand Oaks SAGE Pub. 1994 - xix, 228p.
0803952554
RESEARCH DESIGN
SOCIAL SCIENCES-Research Methodology
303.022/.023 / C7
Research design: qualitative & quantitative approaches - Thousand Oaks SAGE Pub. 1994 - xix, 228p.
0803952554
RESEARCH DESIGN
SOCIAL SCIENCES-Research Methodology
303.022/.023 / C7