Fahmi, A. and Hutauruk, D.S. 2022. Antimicrobial Activity Test of Black Tea Ethanol Extract (Camellia sinensis) against Pseudomonas aeruginosa. International Journal of Global Optimization and Its Application. 1, 4 (Dec. 2022), 229–235. DOI:https://doi.org/10.56225/ijgoia.v1i4.101.