S.Kimoto, F.Oka, and E.Garcia. 2013. “Numerical Simulation of the Rainfall Infiltration on Unsaturated Soil Slope Considering a Seepage Flow”. Geotechnical Engineering Journal of the SEAGS & AGSSEA 44 (3). Bangkok, Thailand:1-13. https://doi.org/10.14456/seagj.2013.15.