Hafeez, M. ., Chatha, Z. A. ., Bakhsh, A. ., Basit, A. ., Khan, A. A. . and Tahira, F. . (2020) “Reference Evapotranspiration by Hargreaves and Modified Hargreaves Equations under Semi-Arid Environment”, Current Research in Agricultural Sciences, 7(2), pp. 58–63. doi: 10.18488/journal.68.2020.72.58.63.