Simadibrata, M., G. N. Tytgat, L. A. Lesman, D. Daldiyono, and I. Ariawan. “Endoscopical Appearances of Nonsteroidal Anti Inflammatory Drug (NSAID)- Enteropathy”. Medical Journal of Indonesia, Vol. 14, no. 4, Nov. 2005, pp. 225-9, doi:10.13181/mji.v14i4.200.