Vujcic, J. y Ram, P.K., «Handwashing promotion : monitoring and evaluation module». UNICEF, s.l., pp. 115 p., Ref. 113-115. , 2013.

Arnold, B., Null, C., Luby, S.P., Unicomb, L., Stewart, C.P., Dewey, K.G., Ahmed, T., Ashraf, S., Christensen, G., Clasen, T., Dentz, H.N., Fernald, L.C.H., Haque, R., Hubbard, A., Kariger, P., Leontsini, E., Lin, A., Njenga, S.M., Pickering, A.J., Ram, P.K., Tofail, F., Winch, P.J., y Colford, J.M., «Infectious diseases : cluster-randomised controlled trials of individual and combined water, sanitation, hygiene and nutritional interventions in ru..», British Medical Journal [BMJ] open, p. 17 p.; 3 fig., 2013.

Ram, P.K., Luby, S.P., Halder, A.K., Islam, M.S., y Granger, S., «Improving measures of handwashing behavior : global scaling up handwashing project». Water and Sanitation Program - East Asia and the Pacific, WSP-EAP, Jakarta, Indonesia, p. 47 p. : 1 box, 13 fig., 22 tab., 2010.