Kosasih, K., 		Lismawati, D., & 		Adinugroho, R.
(2025).
 Optimization of hand sanitizer gels containing soursop (Annona muricata L.) leaf extract using Simplex Lattice Design method.
<em>JURNAL ILMU KEFARMASIAN INDONESIA, 23</em>(1), 67-82.
doi:10.35814/jifi.v23i1.1717