Mohd Hafiz Fazalul Rahiman Ruzairi Abdul Rahim Mohd Hezri Fazalul Rahiman Mazidah Tajjudin Modelling Non-Invasive Ultrasonic Tomography for Industrial Liquid/Gas Flow Application. 33-39 2006 conf/msv/2006 MSV db/conf/msv/msv2006.html#RahimanRRT06