Olrarat Wongsirikajorn. (2009) Gas holdup via electrical resistance tomography and residence time distribution via stimulus-response tracer technique in an external-loop gas lift reactor /. Kasetsart University,:ม.ป.ท.Olrarat Wongsirikajorn. 2009. Gas holdup via electrical resistance tomography and residence time distribution via stimulus-response tracer technique in an external-loop gas lift reactor /. ม.ป.ท.:Kasetsart University,;Olrarat Wongsirikajorn. Gas holdup via electrical resistance tomography and residence time distribution via stimulus-response tracer technique in an external-loop gas lift reactor /. ม.ป.ท.:Kasetsart University, 2009. Print.