Study the Economy of Bubble Deck Slab by Using a Polypropylene Ball: Enhancing Structural Efficiency and Economy through the Use of Polypropylene Balls in Bubble Deck Slabs. JASRAE [Internet]. 2018 Apr. 27 [cited 2024 Aug. 26];15(2):449-51. Available from: https://ignited.in/index.php/jasrae/article/view/7964