Cita APA (7th ed.)

Singh, Y., & Bajpai, R. B. (2008). Research methodology. APH Pub..

Cita Chicago (17th ed.)

Singh, Y.K, i R. B. Bajpai. Research Methodology. New Delhi: APH Pub., 2008.

Cita MLA (8th ed.)

Singh, Y.K, i R. B. Bajpai. Research Methodology. APH Pub., 2008.