Haryani, R., and E. Nur Khotimah. “Formulation And Physical Evaluation Of Hand Sanitizer Gel Spray Gel Preparations From Aloe Vera Gel (Aloe Vera L.)”. Medihealth: Jurnal Ilmu Kesehatan Dan Sains, vol. 3, no. NO 01, Feb. 2023, pp. 51-57, https://jurnal-ikmb.id/index.php/Medihealth/article/view/58.