Azhar, Syaibatul Nur Eizzaniq, et al. “Soil Settlement and Tunnel Deformations Pattern Analysis of Underground Single Tunnel MRT Putrajaya Line Using Finite Element Method”. Progress in Engineering Application and Technology, vol. 3, no. 2, Dec. 2022, pp. 895–903, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/7888.