Abu Talib, M. K., K. Basri, A. Zainorabidin, and H. Wahab. “The Optimum Field Configuration for Active MASW Survey on Peat Soil”. International Journal of Integrated Engineering, Vol. 12, no. 9, Dec. 2020, pp. 121-30, https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/6999.