Le Van, T., Duong, C.T., Nguyen, T.T., Nguyen Thi, H. and Pham, H.N. 2022. Adsorption of ammonia in wastewater using zeolite synthesized from coal fly ash. Journal of Military Science and Technology. VITTEP (Dec. 2022), 178–184. DOI:https://doi.org/10.54939/1859-1043.j.mst.VITTEP.2022.178-184.