Mukhtar, A. M., S. H. Kadir, N. H. M. Nor, and N. A. M. Nawawi. “Smart Drain Concrete Concrete-Based Smart Drainage System Innovation”. Tropical Scientific Journal, vol. 4, no. 2, Feb. 2026, pp. 143-5, https://scientificacademic.com/index.php/tsj/article/view/55.