YAHYA, Diyas Aledya; 						PERMATASARI, Intan; 						MA'MUN, Sholeh.
 An Investigation into the Effectiveness of Green Betel (Piper betle L.) Leaf Extract Hand Sanitizer.
<strong>BERKALA SAINSTEK</strong>, [S.l.], v. 11, n. 2, p. 121-128, june 2023.
ISSN 2339-0069.
Available at: &lt;<a href="https://jurnal.unej.ac.id/index.php/BST/article/view/39190" target="_new">https://jurnal.unej.ac.id/index.php/BST/article/view/39190</a>&gt;. Date accessed: 27 july 2024.
doi: <a href="https://doi.org/10.19184/bst.v11i2.39190">https://doi.org/10.19184/bst.v11i2.39190</a>.