TY - BOOK AU - Zahari Muda TI - Potensi bahaya runtuhan batuan di Gunug Pondok Padang Rengas, Perak PY - 1985/// KW - Geology investigation KW - Padang Rengas KW - Perak N1 - Includes bibliographical references N2 - Gunung Pondok is a karst bounded by high cliffs and rising in above the valley floor. In December, 1983, a rockfall occured at the sioutheastern corner of the hill ER -