Qalam Azad Rosle Stratigraphy, Sedimentology And Structural Geology Of The Betong-Lepang Nenering Border Area, Pengkalan Hulu (Keroh), Hulu Perak Qalam Azad Rosle - Kuala Lumpur University Malaya 1995 - xxii, (various pg.) ill.; some col.; 3 maps 30 xcm Includes bibliography index Subjects--Topical Terms: Stratigraphy