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Experimental research
latin square design
7
factorial experiments
5
Historical research
2
Philosophy of research
2
Survey research
2
factorial experiment
2
Approaches to research
1
Arteriosclerosis
1
Case study research
1
Drug therapy
1
Field experiments
1
Inferential data analysis
1
Information sources
1
Oral history
1
Planning and writing research
1
Research
1
Research design
1
Research: the search for knowledge
1
Sampling
1
Structure of a thesis
1
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