Ramadhan Tosepu, Joko Gunawan, Devi Savitri Effendy, La Ode Ali Imran Ahmad, and Amrin Farzan. “The Outbreak of Diphtheria in Indonesia”. Pan African Medical Journal, vol. 31, no. 1, Dec. 2018, doi:10.11604/pamj.2018.31.249.16629.