Wahana Ayu Saputri, Tatiana Siska Wardani, and Anna Fitriawati. “Antibacterial Activity Test Of Extract, N-Hexane Fraction, Ethyl Acetate And Water Of Kesum Leaves (Polygonum Minus H) Against Escherichia Coli ATCC 25922 Bacteria”. International Journal of Health Engineering and Technology, vol. 4, no. 6, Mar. 2026, doi:10.55227/ijhet.v4i6.663.