J. SHEKHAR, B. S. MANKOTlA, and S.P. DEV. “Productivity and Economics of Rice (Oryza Sativa) in System of Rice Intensification in North-Western Himalayas”. Indian Journal of Agronomy 54, no. 4 (October 10, 2001): 423–427. Accessed June 26, 2026. https://pub.isa-india.in/index.php/ija/article/view/4817.