Ph.D. (Statistika), 2005, Umeå University, Sweden
Disertasi: Multiple Time Scales and Longitudinal Measurements in Event History Analysis

MPH. (Biostatistika), 2000, Khon Kaen University, Thailand
Tesis: Multilevel Model of the Diarrhea Occurrence in Children

Drs. (Matematika-Statistika), 1992, Universitas Gadjah Mada
Skripsi: Metode Regeneratif untuk Analisis Output Simulasi