1.Đoàn Đặng V, Huy Đỗ Q, Huệ N Đức, Trí TM. DETERMINATION OF METHAMPHETAMINE IN URINE SAMPLES BY GC-MS METHOD USING SOLID PHASE EXTRACTION (SPE). Vietnam J. Sci. Technol. [Internet]. 2012 Jun. 26 [cited 2026 Jan. 10];48(5). Available from: https://vjs.ac.vn/jst/article/view/1196