Burhan, Amelia Handayani. “Potential of Beetroot (Beta Vulgaris L.) and Purple Sweet Potato (Ipomoea Batatas L.) As Natural Indicators of Formalin in Food”. JURNAL ILMU KESEHATAN BHAKTI SETYA MEDIKA 4 (September 1, 2019): 7–13. Accessed January 22, 2025. https://jurnal.poltekkes-bsi.ac.id/index.php/bsm/article/view/67.