Prapaipis Tawonsri, Somchai Saeung, Chayut Nuntadusit. Application of microbubbles for cleaning coal powder. J. Curr. Sci. Technol. [internet]. 2018 Dec. 30 [cited 2025 Oct. 7];8(2):57-65. available from: https://ph04.tci-thaijo.org/index.php/JCST/article/view/471