R. N. MEENA, S. P. SINGH, and K. SINGH, “Effect of organic nitrogen nutrition on yield, quality, nutrient uptake and economics of rice (Oryza sativa)—table pea (Pisum sativum var. hortense) — onion (Allium cepa) cropping sequence*”, Indian J Agri Sci, vol. 80, no. 11, Nov. 2010, doi: 10.56093/ijas.v80i11.1735.