Chinh, N. T., Trang, T. D. M., Tuyet, N. T. ., Oanh, N. N., Mai, T. T. ., Thi Thu Trang, N., & Hoang, T. (2018). Adsorption of mercuric ion from aqueous solutions using modified fly ash. <i>Vietnam Journal of Science and Technology</i>, <i>56</i>(6), 688–697. https://doi.org/10.15625/2525-2518/56/6/12664