UMARUDIN, Umarudin et al.
 Aplikasi Hand Sanitizer Kitosan Cangkang Bekicot Sebagai Antibakteri dan Upaya Preventif Covid 19.
<strong>SIMBIOSA</strong>, [S.l.], v. 9, n. 2, p. 107-117, oct. 2020.
ISSN 2598-6007.
Available at: &lt;<a href="https://www.journal.unrika.ac.id/index.php/simbiosajournal/article/view/2669" target="_new">https://www.journal.unrika.ac.id/index.php/simbiosajournal/article/view/2669</a>&gt;. Date accessed: 14 feb. 2026.
doi: <a href="https://doi.org/10.33373/sim-bio.v9i2.2669">https://doi.org/10.33373/sim-bio.v9i2.2669</a>.