Amborowati, Cindi, et al. “Optimization of Natural Dye Extraction from Avocado Skin (Percea Americana Mill) Using the Taguchi Method”. Jurnal Ilmiah Teknik Kimia, vol. 9, no. 1, Jan. 2025, pp. 50-56, doi:10.32493/jitk.v9i1.46230.