Nguyen, D., Pham, Q., & Tran, T. (2016). Apply modified cotton by m-DMDHEU and choline cloride to separate ion CrO4 2- , H2AsO4 - in water solution. Science and Technology Development Journal, 19(3), 62-69. https://doi.org/https://doi.org/10.32508/stdj.v19i3.521