V. N. People's C. Hanoi, Helsinki, F. I. F. I. N. N. I. D. A. -, et Hanoi, V. N. Y. M. E. Group,
« Hanoi water supply project phase II : water master plan : interim report master plan : interim report ». FINNIDA, Ministry of Foreign Affairs, Helsinki, Finland, p. 151 p.: fig., map, tab., 1989.
F. Brughuis,
« Watervoorziening voor de Derde Wereld ». Twente University of Technology, Technology and Development Group, Enschede, The Netherlands, p. 50 p.: fig., 1989.