A. Rifa’i and Y. Takeshita and M. Komatsu, Determination of Unsaturated Soil Permeability Based on Geometric Factor Development of Constant Discharge Model. journal = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2016, vol. 117(9). 934 - 939 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/10005436.