Imoh Christopher Attah และผู้แต่งคนอื่นๆ. (2021) Experimental and optimization study of unconfined compressive strength of ameliorated tropical black clay. <i>Engineering and Applied Science Research</i>, <i>48</i>(3), 238-248.Imoh Christopher Attah และผู้แต่งคนอื่นๆ. "Experimental and optimization study of unconfined compressive strength of ameliorated tropical black clay". Engineering and Applied Science Research 48 (2021):238-248.Imoh Christopher Attah และผู้แต่งคนอื่นๆ. Experimental and optimization study of unconfined compressive strength of ameliorated tropical black clay. Faculty of Engineering, Khon Kaen University:ม.ป.ท. 2021.