Erwan Maryaddi Wakiman Geologi am lebuhraya Butterworth-Kulim dengan penekanan kepada kestabilan cerun Erwan Maryaddi Wakiman - Kuala Lumpur Fakulti Sains Universiti Malaya 2004 - viii, 20 p. ill.,maps,photos 30 cm Includes bibliographical references Subjects--Topical Terms: Geology--Pulau Pinang--ThesisEngineering geology--Pulau Pinang--Thesis