Ojha T.P, M. A. Principles of Agricultural Engineering Vol II (5th.). 2020.
Lua i Stíl Chicago (17ú heag.)Ojha T.P, Michael A.M. Principles of Agricultural Engineering Vol II. 5th. New Delhi: 2020.
Lua MLA (9ú heag.)Ojha T.P, Michael A.M. Principles of Agricultural Engineering Vol II. 5th. 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.