Ranjit Kumar. (2014). Research methodology: A step-by-step guide for begineers (4th ed.). Sage Publications India.
استشهاد بنمط شيكاغوRanjit Kumar. Research Methodology: A Step-by-step Guide for Begineers. 4th ed. New Delhi: Sage Publications India, 2014.
MLA استشهادRanjit Kumar. Research Methodology: A Step-by-step Guide for Begineers. 4th ed. Sage Publications India, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.