1.
Yuliyana Y, Marliza H, Badar M, Yusri YF. Analysis of Caffeine Levels in Imported Coffee Drinks Circulating in Batam City by Using the UV Spectrophotometric Method: Analisis Kadar Kafein Pada Minuman Kopi Import Yang Beredar Dikota Batam dengan Menggunakan Metode Spektrofotometri UV . Ahmar Metastasis Health J. [Internet]. 2021 Dec. 31 [cited 2026 Apr. 16];1(3):106-11. Available from: https://journal.ahmareduc.or.id/index.php/AMHJ/article/view/62