Suryati, Luh Tuti, and Debby Juliadi. “Overview Of The Use Of Vitamin C As An Immunomodulator In Adult Patients With COVID-19: A Study Of The Literature”. Jurnal Farmasi & Sains Indonesia 4, no. 2 (October 20, 2021): 31-40. Accessed July 8, 2025. https://www.journal.stifera.ac.id/index.php/jfsi/article/view/78.