Ninh, Tran Hai, Le Thi Quyen, Le Duc Giang, and Tran Nhu Hoan. “Green Oxidation of Natural Rubber Latex Using a Sodium Tungstate Formic Acid Hydrogen Peroxide Catalytic System”. Vietnam Journal of Chemistry 53, no. 5 (December 1, 2015): 618. Accessed December 6, 2025. https://vjs.ac.vn/vjchem/article/view/7629.