A. S. Yahaya, F. Ahmad, Z.A Mohtar and S. Suri 2017. Rainfall Erosivity Variability for Penang Island. Geotechnical Engineering Journal of the SEAGS & AGSSEA . 48, 1 (Mar. 2017), 33–37. DOI:https://doi.org/10.14456/seagj.2017.38.