Singh B. B. (2019). Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. Daya Publishing House.
Chicago-čujuhus (17. p.)Singh B. B. Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. New Delhi: Daya Publishing House, 2019.
MLA-čujuhus (9. p.)Singh B. B. Objective Agronomy: For Saus Entrance JRF/SRF/Ars/ ICAR/NET Civil Services & Other Competitive Examination. Daya Publishing House, 2019.
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