kumar Tyagi D, Majumder M, Kant C, Prabhat Singh A. Estimation of hazen williams’s constant for a residential water distribution network; GMDH and PSO approach. IJET [Internet]. 2018 Mar. 5 [cited 2025 May 24];7(2.1):92-9. Available from: https://mail.sciencepubco.com/index.php/IJET/article/view/11051