S. I. Gama, “Analisis Logam Berat Dalam Daun Sirsak dan Daun Beluntas”, J. Sains. Kes, vol. 1, no. 8, hlm. 397–401, Nov 2024, Diakses: Sep 21, 2026. Tersedia pada: https://jsk.ff.unmul.ac.id/index.php/JSK/article/view/106