Jaroensappayanant, P. ., R. . Thammarong, and T. . Sittiprasong. “Improvement of Dyeing Efficiency of Direct Dyes on Cotton Fabric with Ozone”. Frontiers in Engineering Innovation Research, vol. 19, no. 1, June 2021, pp. 47-54, https://ph01.tci-thaijo.org/index.php/jermutt/article/view/244680.