SOFIA, B. F. D.; HAKIM, A.; SAFITRI, A. Pengembangan Modul Praktikum Kimia Bahan Alam Berbasis Generik Sains: Isolasi Kafein Dari Bubuk Kopi. Chemistry Education Practice, [S. l.], v. 3, n. 1, p. 47–54, 2020. DOI: 10.29303/cep.v3i1.1770. Disponível em: https://jurnalfkip.unram.ac.id/index.php/CEP/article/view/1770. Acesso em: 21 feb. 2024.