Siwat Lawanwadeekul และผู้แต่งคนอื่นๆ. (2023) Effect of size and amount of lightweight expanded clay aggregate on normal incidence sound absorption coefficient of concrete. <i>Engineering and Applied Science Research</i>, <i>50</i>(3), 195-201.Siwat Lawanwadeekul และผู้แต่งคนอื่นๆ. "Effect of size and amount of lightweight expanded clay aggregate on normal incidence sound absorption coefficient of concrete". Engineering and Applied Science Research 50 (2023):195-201.Siwat Lawanwadeekul และผู้แต่งคนอื่นๆ. Effect of size and amount of lightweight expanded clay aggregate on normal incidence sound absorption coefficient of concrete. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2023.