SIDHU, G S, A K SHARMA, R C SAMUI, JAYA N SURYA, KALPANA H KAMBLE, and J P SHARMA. “Sources and Quality of Irrigation Water in Different Agro-Climatic Zones of Upper, Middle and Lower Gangetic Plains Region*”. The Indian Journal of Agricultural Sciences 81, no. 2 (February 8, 2011). Accessed October 27, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/4006.