Harahap, Yahdiana, Muhammad Rezqi Hakim, and Kuswardani Soedigdo. “DEVELOPMENT AND VALIDATION OF METHAMPHETAMINE ANALYSIS IN SALIVA USING GAS CHROMATOGRAPHY-TANDEM MASS SPECTROMETRY”. International Journal of Applied Pharmaceutics 10, no. 1 (December 20, 2018): 97–101. Accessed December 23, 2024. https://mail.innovareacademics.in/journals/index.php/ijap/article/view/31430.