Rani, Rekha, and H. N. Singh. “A Comparative Study of Technical Efficiency of Rice Production in Irrigated and Rainfed Environment of Uttrakhand”. Indian Journal of Hill Farming 28, no. 2 (January 4, 2016). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJHF/article/view/54805.