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