Yahya, A., S. N. A. Sulaiman, and M. Maryudi. “Effect of Operating Condition of Natural Dye Production from Red Spinach (Amaranthus Dubius ) Using Solvent Extraction”. ASEAN Journal of Chemical Engineering, Vol. 24, no. 3, Dec. 2024, pp. 342-5, doi:10.22146/ajche.14357.