ANALISIS KADAR KAFEIN DALAM MINUMAN KOPI KHOP ACEH DENGAN METODE SPEKTROSKOPIK. Lantanida Journal, [S. l.], v. 6, n. 2, p. 141–155, 2019. DOI: 10.22373/lj.v6i2.3624. Disponível em: https://jurnal.ar-raniry.ac.id/index.php/lantanida/article/view/3624. Acesso em: 5 may. 2026.