Singh, S. P. (2002). Research methods in social sciences: A manual for designing Questionnaires. Kanishka.
Chicago-stil citatSingh, S. P. Research Methods in Social Sciences: A Manual for Designing Questionnaires. New Delhi: Kanishka, 2002.
MLA-referensSingh, S. P. Research Methods in Social Sciences: A Manual for Designing Questionnaires. Kanishka, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.