Jusfah, Jasmi, and Irsyad Agus. “Screening on Some Concentration of Guava Leaves Extract (<em>Psidium Gujava L< em>) to Some Species of <em>Salmonella< Em>”;. Medical Journal of Indonesia, vol. 7, no. Supp1, Oct. 1998, p. 283, doi:10.13181/mji.v7iSupp1.1141.