Mohd Anuar bin Md. Razali dan Dzazali bin Ayub <br/><br/>
Survei mikrograviti kejadian pemendapan tanah di Sek. Men. Sultan Yusuf, Batu Gajah, Perak : RAK (E9) 

 - GF 01/2011 
 - Ipoh, Perak:   Bahagian Perkhidmatan Teknikal, Jabatan Mineral dan Geosains Malaysia,   2011 
 - ill. 19 p. 29.8 cm 
<br/><br/> Summary<br/><br/>Geophysic unit, Technical Services Department, Mineral and Geoscience Department of Malaysia conducted survey at Sekolah Menengah Kebangsaan Sultan Yusuf, Batu Gajah, Perak. The objectives was to identify cavity or channel which can be related to the soil subsidence or sinkhole occurences.  <br/><br/>The results of the survey identified a major channel trending west - east. The soil subsidence occurred within the channel. Therefore, the areas over or in the vicinity of these anormalies (channel) are considered a high risk areas. 
<br/><br/><label>Subjects--Chronological Terms: </label>--Geology-Microgravity Survey-Batu Gajah, Perak