Lismaya, L. et al. 2024. Utilization of Organic Waste as A Natural Detector of Formaldehyde on-Campus Snacks . Jurnal Penelitian Pendidikan IPA. 10, 6 (Jun. 2024), 3519–3526. DOI:https://doi.org/10.29303/jppipa.v10i6.4255.