Adityas, H. P.; Wulansari, E.; Fitria, S. N. Optimization Of Toner Preparation Of Tea Tree Oil (Melaleuca Alternifolia (Maaiden & Betche) Chell) With Variations In Glycerine And Propylene Glycol Consentrations Using Simplex Lattice Design. JFSI 2024, 7, 88-98.