ABRIYANI, E.; YANTI, D. .; YULIANI, Y.; SHAPA AZZAHRA, S. .; ALDI FIRDAUS, M. Analisis Kafein Dalam Kopi Menggunakan Metode Spektrofotometri Uv-Vis. Journal of Comprehensive Science (JCS), [S. l.], v. 1, n. 5, p. 1398–1409, 2022. DOI: 10.59188/jcs.v1i5.175. Disponível em: https://jcs.greenpublisher.id/index.php/jcs/article/view/175. Acesso em: 16 sep. 2024.