Biblio

H. Heinonen-Tanski, Snel, M., van Wijk-Sijbesma, C. A., Quazi, A. R., Mathew, K., Werellagama, I., Rahman, M., Rashid, S. M. A., Jayaweera, P., and Judith, H., “Assessing of environmental quality in six areas in India, Sri Lanka and Bangladesh”, Environment, development and sustainability, pp. p. 355-368, 2007.

A. Almedom, K. Kumary, A., Francis, K. A., Mathew, K., Lalachan, P. V., Paul, L., Manoharan, B., Nagesh, C. K., Nisha, K., Remadevi, O. T., Babu, K. N. Suresh, and S. Ammal, V., “Kerala hygiene evaluation study”. Kerala Water Authority, Socio-Economic Units, Trivandrum, India, p. viii, 70 p. + annexes (ca. 40 p.) : fig., tab., photogr., 1996.

G. Ho, Anda, M., and Mathew, K., “Appropriate technology hygiene facility for small communities”, Water science and technology, pp. p. 163-173: fig., 1991.