APA (7 वां संस्करण) प्रशस्ति पत्र

Ojha T.P, M. A. Principles of Agricultural Engineering Vol II (5th.). 2020.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ojha T.P, Michael A.M. Principles of Agricultural Engineering Vol II. 5th. New Delhi: 2020.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ojha T.P, Michael A.M. Principles of Agricultural Engineering Vol II. 5th. 2020.