Kalhara, N., Perera, A., Perera, A., Lankathilake, N., & Ranasinghe, T. (2018). Suitability of Soil Washed Sand as Fine Aggregates to Replace River Sand in the Concrete. American Scientific Research Journal for Engineering, Technology, and Sciences, 46(1), 25–33. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4312