2-Bradley, E., Curry, L., Pérez-Escamilla, R. & et. al. 2011. "Dissemination, diffusion and scale up of family health innovations in low-income countries". Yale Global Health Leadership Institute.
3-Dearing, J. W. 2008. "Evolution of diffusion and dissemination theory". Journal of Public Health Management and Practice. 14(2). pp 99-108.