Kejadian Lubang Benam Di Kem Oran, Mata Ayer, Perlis  No. Laporan: JMG.KPP.GS.01/2001 

 - Alor Star  Geological Department  Of Malaysia Kedah, Perlis dan Pulau Pinang,  2001 
 - <i-v>, <1-153p>  ill.(some color)  table,fig,.ref.  30cm 
<br/><br/>includes references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering Geology--Sink Holes--Perlis--Malaysia