Abriyani E, Alisthipa Sephia R, Srifitriani E, Lustianah T, Khafina Azzahra S. Analisis Kadar Kafein Kopi, Teh, Dan Coklat Menggunakan Metode Spektrofotometri Uv-Vis . JCS [Internet]. 2022Jan.2 [cited 2024Sep.16];2(1):7-15. Available from: https://jcs.greenpublisher.id/index.php/jcs/article/view/178