Nguyen Duy Anh, Nguyen Huu Van, Tran Van Hien. Study on synthesis of biodegradable polyurea grease using modified vegetable oil. J. Mil. Sci. Technol. [Internet]. 2022 Dec. 30 [cited 2026 Mar. 12];(FEE):279-84. Available from: https://jmst.mod.gov.vn/index.php/jmst/article/view/759