Soesilo, H., Y. Soenarto, S. Soelistyowati, R. Ristanto, and I. Ismangoen. “Effects of Chloramphenicol on the Titer of Widal in Typhoid Fever”. Paediatrica Indonesiana, Vol. 22, no. 9-10, Oct. 1982, pp. 165-70, doi:10.14238/pi22.9-10.1982.165-70.