Christian L. Balatbat, Emerly I. Balagosa, Earl John M. Dagdag, Leoj Y. Manliclic, Erwin Ronald D. Calma and Rico Jay S. Laxa (2024) “A Cost-Benefit Analysis of Roof Tiles with Polyethylene Terephthalate and Concrete Waste in Construction Industry”, International Journal of Progressive Research in Science and Engineering , 5(04), pp. 29–36. Available at: https://journal.ijprse.com/index.php/ijprse/article/view/1036 (Accessed: 3 July 2024).