Semba, R. D., S. de Pee, K. Sun, N. Akhter, M. W. Bloem, and V. Raju. “Coverage of Vitamin A Capsule Programme in Bangladesh and Risk Factors Associated With Non-Receipt of Vitamin A”. Journal of Health, Population and Nutrition, vol. 28, no. 2, Apr. 2010, pp. 143-8, doi:10.3329/jhpn.v28i2.4884.