Wangrakdiskul , U. ., and W. . Loetchantharangkun. “Utilizing Green Glass Cullet, Local Ball Clay and White Clay For Producing Light Greenish Brown Color Wall Tile”. European Journal of Engineering Science and Technology, vol. 2, no. 3, Sept. 2019, pp. 23-30, doi:10.33422/EJEST.2019.08.14.