S. H. Mohd Imam Ma’arof and N. A. Samat, “Standardized Morbidity Ratio and Its Application to Chikungunya Disease Mapping in Malaysia: Standardized Morbidity Ratio dan Aplikasinya Terhadap Pemetaan Penyakit Chikungunya di Malaysia”, JSML, vol. 1, pp. 37–46, Dec. 2013.