Narravula Priyank. (2012). Industry and company research - Ports and shipping -India. NMIMS SBM.
Lua i Stíl Chicago (17ú heag.)Narravula Priyank. Industry and Company Research - Ports and Shipping -India. Mumbai: NMIMS SBM, 2012.
Lua MLA (9ú heag.)Narravula Priyank. Industry and Company Research - Ports and Shipping -India. NMIMS SBM, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.