HUNDAL, S S, R SINGH, and L K DHALIWAL. “Agro-Climatic Indices for Predicting Phenology of Wheat (Triticum Aestivum) in Punjab”. The Indian Journal of Agricultural Sciences 67, no. 6 (May 17, 2013). Accessed June 14, 2026. https://epubs.icar.org.in/index.php/IJAgS/article/view/29915.