Rezky , D. I., S. Supiyani, A. S. Daulay, and M. S. Lubis. “) Using Acidimetric Titration and GC-MS Methods”. Journal of Pharmaceutical and Sciences, vol. 8, no. 3, Aug. 2025, pp. 1578-87, doi:10.36490/journal-jps.com.v8i3.909.