Al-Mamun, A. ., S. . Legori Binti Ibrahim, D. . Irwan Masbah, J. . Ibrahim Daud, and N. . Khan E.M. Yahya Khan. “Calculation of Proper Time of Concentration for Drainage Design in Construction Projects for Urban Development”. CONSTRUCTION, vol. 3, no. 2, Dec. 2023, pp. 190-5, doi:10.15282/construction.v3i2.9664.