Al-Madhhachi A-ST, Hamad SN. Mathematical Approach to Optimum Drip Irrigation Subunit Design. J. eng. sustain. dev. [Internet]. 2026 Aug. 31 [cited 2026 Sep. 1];30(5):731-40. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2597