Suryadi, A., Choanji, T., & Wijayanti, D. (2018). Infiltration Rate of Quarternary Sediment at Rumbio Jaya, Kampar, Riau. Journal Of Geoscience, Engineering, Environment, And Technology, 3(1), 57-62. doi:10.24273/jgeet.2018.3.1.1223