Search Results       Your search for [author]Sibal, Valentina V. returned 1 record.           The Impact of small-scale irrigation on productivity, employment and income distribution : an empirical analysis, 1980. by Sibal, Valentina V.; 1980. Subject: Employment; Farm income - Sariaya, Quezon; Farm produce; Irrigation farming -- Economic aspects.          Add to Book Cart Relevance: 19.00%