Khan, N. A., Ahmad , H., Syed, . N. U. H. ., Ahmad, B. ., Khan, S. ., & Ismail, H. . (2024). The use of Fly ash as a cheap filler medium in order to cut the production cost of the Unplasticized polyvinyl chloride (rigid) pipes, though maintaining the strength and the finishing quality . University of Wah Journal of Science and Technology (UWJST), 8, 1–13. Retrieved from https://uwjst.org.pk/index.php/uwjst/article/view/158