Sapsford, R., & Jupp, V. (1996). Data collection and analysis. London: Sage in association with Open University.
Chicago Stili AlıntıSapsford, Roger., and Victor Jupp. Data Collection and Analysis. London: Sage in association with Open University, 1996.
MLA AlıntıSapsford, Roger., and Victor Jupp. Data Collection and Analysis. London: Sage in association with Open University, 1996.
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