RISQAH AMALIAH KASMAN; IMRANAH. ANALISIS KADAR KAFEIN DAN ASAM KLOROGENAT DALAM KOPI DENGAN METODE SPEKTROFOTOMETRI UV-VIS. Jurnal Riset Guru Indonesia, [S. l.], v. 2, n. 1, p. 40–47, 2023. DOI: 10.62388/jrgi.v2i1.213. Disponível em: https://journal.almeeraeducation.id/jrgi/article/view/213. Acesso em: 28 des. 2024.