Ngô, V.H., Nguyễn Văn Cành, Nguyễn Thị Hòa, Hoàng Thế Vũ and Nguyễn Mạnh Tường 2022. Preparation of modified urea formaldehyde resin using for flame resistant composite material. Journal of Military Science and Technology. 82 (Oct. 2022), 120–126. DOI:https://doi.org/10.54939/1859-1043.j.mst.82.2022.120-126.