APA (7 वां संस्करण) प्रशस्ति पत्र

Singh B. B. (2019). Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. Daya Publishing House.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Singh B. B. Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. New Delhi: Daya Publishing House, 2019.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Singh B. B. Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. Daya Publishing House, 2019.