Kumar, R. (2011). Research Methodology (3rd ed.). Sage Publications India Pvt. Ltd.
Chicago (17e ed.) BronvermeldingKumar, Ranjit. Research Methodology. 3rd ed. New Delhi: Sage Publications India Pvt. Ltd, 2011.
MLA (9e ed.) BronvermeldingKumar, Ranjit. Research Methodology. 3rd ed. Sage Publications India Pvt. Ltd, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.