HARIYADI, Slamet et al. Media Design "Detector Marker" based on STEM with Dragon Fruit Peel Extract for Detectionof Formaldehyde Additives at School in Agroecosystem Zone. BIOEDUKASI, [S.l.], v. 21, n. 2, p. 132-137, june 2023. ISSN 2580-0094. Available at: <https://jurnal.unej.ac.id/index.php/BIOED/article/view/40076>. Date accessed: 22 dec. 2024. doi: https://doi.org/10.19184/bioedu.v21i2.40076.