Krol, R.J.

Krol, R.J., 1990. Investigations of the NWS&DB Bandarawela water supply schemes Wellawaya, Welimada, Thanamalwila, Delft, The Netherlands: Delft University of Technology. Available at: http://fr.ircwash.org/sites/default/files/255.3-90IN-7698.pdf.