Rao, N. G. (2019). Research Methodology and Quantitative Methods. BS Publications A Unit of BSP Books Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Rao, Nageswara G. Research Methodology and Quantitative Methods. Hyderabad: BS Publications A Unit of BSP Books Pvt. Ltd, 2019.
Lua MLA (9ú heag.)Rao, Nageswara G. Research Methodology and Quantitative Methods. BS Publications A Unit of BSP Books Pvt. Ltd, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.