Salleh, Emee, Rohaya Othman, and Siti Noorzida Mohd Sabri. 2022. “Mitigation of carbide lime waste and CO2 gas emission from acetylene gas industry: feasible technique of high-grade PCC production”. Thai Geoscience Journal 3 (4). Bangkok, Thailand:5-11. https://ph03.tci-thaijo.org/index.php/TGJ/article/view/1797.