D. SINGH, V. RAO, R. SINGH, and S. SINGH, “Short-wave reflection coefficients of field crops at Hisar”, Indian J Agri Sci, vol. 70, no. 9, Apr. 2013, Accessed: Oct. 28, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/28678