Abu Bakar Ruzilawati, and Halijah Miran. 2015. “VALIDATED HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) METHOD FOR ANALYSIS OF METHAMPHETAMINE IN HUMAN URINE USING LIQUID-LIQUID EXTRACTION”. Asian Journal of Pharmaceutical and Clinical Research 8 (2):199-201. https://mail.innovareacademics.in/journals/index.php/ajpcr/article/view/4009.