Noerasid, H., P. Soeparto, B. Rudyanto, M. Noer, and M. Adnan. “Incidence of Cholera in Children under Two Years of Age at the Dr. Soetomo Hospital, Surabaya”. Paediatrica Indonesiana, Vol. 15, no. 7-8, May 2017, pp. 219-28, doi:10.14238/pi15.7-8.1975.219-28.