Irwanto, Rachmad, and Hanif Hanif. “Cutting On Existing Bonded Post-Tensioned Slabs: Safety Precautions, Procedures and Execution”. International Journal of Integrated Engineering, vol. 15, no. 4, Oct. 2023, pp. 329-37, https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/12702.