Estimation of Reference Evapotranspiration Using Penman-Monteith Equation and Time Series Model in some Selected States in Northern Nigeria. LJSIR [انترنت]. 16 يونيو، 2024 [وثق 17 مايو، 2026];2(2):67-74. موجود في: https://lafiascijournals.org.ng/index.php/ljsir/article/view/329