“Uji Filtrasi Heat and Moisture Exchangers (HME) Dalam Menyaring Gas Formaldehida”. Journal of Telenursing (JOTING) 4, no. 2 (September 16, 2022): 521–527. Accessed September 21, 2025. https://journal.ipm2kpe.or.id/index.php/JOTING/article/view/4040.