Hutabarat, M. S. H., A. F. Lubis, and H. Sinaga. “Analysis of COVID-19 Antibodies in Patients Who Have Been Vaccinated With Non-Vaccinated Patients With Confirmed COVID-19 Life”. Medical Laboratory Technology Journal, vol. 10, no. 2, Jan. 2025, pp. 134-42, doi:10.31964/mltj.v10i2.607.