共 50 条
- [23] Selecting a commercial diagnostic laboratory SEMINARS IN AVIAN AND EXOTIC PET MEDICINE, 2001, 10 (02): : 90 - 95
- [27] Exemplar sampling: Nonrandom methods of selecting a sample which characterizes a finite multivariate population AMERICAN STATISTICIAN, 2005, 59 (02): : 166 - 172
- [28] Adapting ethnographic research methods to ad hoc commercial market research QUALITATIVE MARKET RESEARCH, 2006, 9 (02): : 115 - +