Limestone hills and caves of the Kinta Valley / 
Kum Seng Cheang, S. L. Wong 
 - 149 pages :  color illustrations ;  27 cm. 
<br/><br/><label>ISBN: </label>9789839681420 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mountain passes--Malaysia<br/>Caves