Kausarian, Husnul, 		Shamsudin, Abd. Rahim, AND 		Yuskar, Yuniarti.
" Geotechnical and Rock Mass Characterization Using Seismic Refraction Method at Kajang Rock Quarry, Semenyih, Selangor Darul Ehsan" <em>Journal of Ocean, Mechanical and Aerospace -science and engineering-</em> [Online], Volume 13 Number 1 (20 November 2014)