Ni Putu Pranita, Rizki Novtarina, Robby Cahyo Nugroho, Rani Himayani, and Helmi Ismunandar. “Application of Recombinant DNA Biotechnology: Development of Covid-19 Vaccine”. Medical Profession Journal of Lampung 11, no. 3 (February 9, 2022): 300-305. Accessed December 21, 2024. http://journalofmedula.com/index.php/medula/article/view/177.