Siregar, Fauziah Indira, Rahel Nainggolan, Nayla Azizah, Teresia Vredemika Sidauruk, and Miquel Kaban. 2026. “Effectiveness of Purple Cabbage Flower (Brassica Oleracea Var. Capitata F. Rubra) Extract As a Natural Indicator for Borax Identification in Food Products”. BIOCHEPHY: Journal of Science Education 6 (1):105-12. https://doi.org/10.52562/biochephy.v6i1.1970.