On the history of water coagulation : transfer of ancient hindu practices to the valleys of the Yangtze river and the Nile

von Jahn, Samia al Azharia
Veröffentlicht in Asien : the German journal on contemporary Asia, 50.1994
Hamburg : DGA, 1994.
Umfang/Format: p. 45-57. ; 30 cm.

Using Moringa seeds as coagulants in developing countries

von Jahn, Samia al Azharia
Veröffentlicht in Journal / American Water Works Association, 80.1988
New York, NY : American Water Works Association, 1988.
Umfang/Format: p. 43-50 : ill. ; 30 cm.