ERNOVIYA, E.; AFRIADI, A.; SILFANIA, H. N. Analisis Senyawa Kafein pada Bubuk Kopi Jenis Arabika di Kota Takengon Menggunakan Analisis Kualitatif dan Kuatitatif: Analysis of Caffeine Compounds in Arabica Ground Coffee in Takengon City Using Qualitative and Quantitative Analysis. JOPS (Journal Of Pharmacy and Science), [S. l.], v. 6, n. 2, p. 176–183, 2023. DOI: 10.36341/jops.v6i2.3371. Disponível em: https://jurnal.univrab.ac.id/index.php/jops/article/view/3371. Acesso em: 4 apr. 2025.