Ramanath, H. (2009). Research methodology and operations research. Himalaya.
Lua i Stíl Chicago (17ú heag.)Ramanath, H.R. Research Methodology and Operations Research. Himalaya, 2009.
Lua MLA (9ú heag.)Ramanath, H.R. Research Methodology and Operations Research. Himalaya, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.