Zheng L, Liu Y, Hu B, Xu C. Preparation of Nano-Al2O3 Powder Using Huainan Coal Gangue by Ultrasonic. ajc [Internet]. 2014 Mar. 12 [cited 2024 Jul. 23];26(6):1670-2. Available from: https://asianpubs.org/index.php/ajchem/article/view/26_7_30