Tham, Wei Xian, et al. “Asymptotic Computational Fluid Dynamic (ACFD) Study of Three-Dimensional Turning Diffuser Performance by Varying Angle of Turn”. International Journal of Integrated Engineering, vol. 11, no. 5, Sept. 2019, pp. 109-18, https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3957.