Analisis Kadar Kafein Dari Serbuk Teh Hitam, Teh Hijau dan Teh Putih (Camellia sinensis L.). Pharmasci [Internet]. 2016 May 7 [cited 2026 Sep. 25];1(1):15-7. Available from: https://e-journal.akfarsurabaya.ac.id/index.php/jps/article/view/48