(1)
Ibrahim, M. H. Aktiviti Antropogenik Dan Kesannya Terhadap Perubahan Landskap Permukaan: Satu Kajian Observasi Di Ipoh, Perak, Malaysia: Anthropogenic Activities and Their Effects on Surface Landscape: An Observation Study in Ipoh, Perak, Malaysia. PERS 2013, 5, 15-28.