“Estimation of Reference Evapotranspiration Using Penman-Monteith Equation and Time Series Model in Some Selected States in Northern Nigeria”. Lafia Journal of Scientific and Industrial Research 2, no. 2 (June 16, 2024): 67–74. Accessed June 29, 2024. https://lafiascijournals.org.ng/index.php/ljsir/article/view/329.