Validasi Metode Analisis Konsentrasi Larutan Kopi berdasarkan Spektroskopi Absorpsi Cahaya. JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah), [S. l.], v. 8, n. 1, p. 51–59, 2024. DOI: 10.30599/jipfri.v8i1.2101. Disponível em: https://journal.unuha.ac.id/index.php/JIPFRI/article/view/2101. Acesso em: 7 aug. 2026.