-
481
-
482
The impact of irrigation on income distribution in selected Philippine villages
Publicado em 1982Livro -
483
-
484
Operation and management of communal gravity systems in selected Philippine villages
Publicado em 1982Livro -
485
Cogon for export economic and ecological benefit and cost considerations for policy formulation
Publicado em 1982Livro -
486
-
487
Impact of mechanization on output, yield and cropping intensity of rice farms
Publicado em 1982Livro -
488
-
489
-
490