Taib, S. N. L., et al. “Chemical Stabilization of Amorphous Peat Using Cement and Fly Ash at Different Water Additive Ratios”. International Journal of Integrated Engineering, vol. 15, no. 6, Nov. 2023, pp. 1-12, https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/14222.