Coetzee J M. (2002). Research Methods in Social Sciences: A manual for designing questionnaires. Kaniska Publication.
शिकागो स्टाइल उद्धरणCoetzee J M. Research Methods in Social Sciences: A Manual for Designing Questionnaires. New Delhi: Kaniska Publication, 2002.
एमएलए उद्धरणCoetzee J M. Research Methods in Social Sciences: A Manual for Designing Questionnaires. Kaniska Publication, 2002.
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