Andry, M., Shufyani, F., Nasution, M. A., Fadillah, M. F., Tambunan, I. J., & Rezaldi, F. (2023). Phytochemical Screening and Analysis of Caffeine Content in Arabica Ground Coffee in Takengon City Using Spectrophotometry Ultraviolet. Journal of Pharmaceutical and Sciences, 6(3), 998–1006. https://doi.org/10.36490/journal-jps.com.v6i3.176