H. P. Ritzema, Drainage principles and applications, 2nd rev. ed.ª ed., vol. no. 16. Wageningen, The Netherlands: International Institute for Land Reclamation and Improvement, 1994, p. 1125 p. : fig., tab.
G. O. Krhoda, «Urban development and stormwater», in Infrastructure, environment, water and people : proceedings of the 17th WEDC Conference, United Nations Centre for Human Settlement (Habitat), Nairobi, Kenya, 19-23 August 1991, 1991, pp. P. 33-36: 2 tab.