Madan, P. (2010). Research methodology. Global Publishing.
Lua i Stíl Chicago (17ú heag.)Madan, Pankaj. Research Methodology. New Delhi: Global Publishing, 2010.
Lua MLA (9ú heag.)Madan, Pankaj. Research Methodology. Global Publishing, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.