Analisis Logam Berat Timbal Pada Kangkung Air Di Sungai Manembo Nembo Menggunakan Spektrofotometri Serapan Atom . General Chemistry Journal, [S. l.], v. 1, n. 1, p. 21 26, 2023. Disponível em: https://ejurnal.unima.ac.id/index.php/general-chemistry/article/view/7517. Acesso em: 10 jan. 2026.