-
21
-
22
-
23
Diversion requirement estimation for paddy rice irrigation systems
Gepubliceerd in Philippine Engineering Journal (1991)Artikel -
24
-
25
-
26
Operation and management of communal gravity systems in selected Philippine villages
Gepubliceerd in 1982Boek -
27
-
28
-
29
Managing communal gravity systems. Farmers' approaches and implications for program planning
Gepubliceerd in 1980Boek -
30


