Nurmala, Hadiarti, D. and Fitriani 2026. Effectiveness of STEM Project Using Caesalpinia sappan L. Natural ‎Dye to Enhance High School Students’ Chemical Literacy and Food ‎Safety Awareness. ISEJ : Indonesian Science Education Journal. 7, 3 (Sep. 2026), -. DOI:https://doi.org/10.62159/isej.v7i3.2768.