Antibacterial Activity Test of the Combination of Bay Leaf (Syzygium polyanthum) Extract and Nanochitosan Against Escherichia coli and Bacillus subtilis. UnnesJLifeSci [Internet]. 2025 May 31 [cited 2025 Dec. 6];14(1):1-10. Available from: https://journal.unnes.ac.id/journals/UnnesJLifeSci/article/view/24777