Ratridewi, I., S. Winaputri, E. Sulistijono, and F. Juniantika. “Risk Factors of Late Onset Sepsis Caused by Extended Spectrum Beta-Lactamase (ESBL) - Producing Bacteria in Preterm Infants”. Paediatrica Indonesiana, Vol. 63, no. 1sup, Mar. 2023, pp. 21-28, doi:10.14238/pi63.1sup.2023.21-28.