George, Celine. “Updating Class A Pan Coefficients (Kp) for Estimating Reference Evapotranspiration (ETo) in the Humid Tropical Region of Kerala”. Journal of Tropical Agriculture 50, no. 1 (October 16, 2012): 84–87. Accessed November 21, 2024. https://jtropag.kau.in/index.php/ojs2/article/view/274.