Formulation and Characterization of Meniran (Phyllanthus Niruri Linn) Extract Nanoparticle on Antibacterial Activity Against Salmonella Pullorum, Hidanah, Sri, Sabdoningrum Emy Koestanti, and Sudjarwo Sri Agus , Pharmacognosy Journal, April 2022, Volume 14, Issue 2, p.369-373, (2022)