Search Results       Your search for [subject]Road construction workers -- Philippines -- Bicol Region -- Diseases and hygiene returned 1 record.           The effect of anemia on road construction worker productivity. by Popkin, Barry Michael; [Quezon City]: School of Economics, University of the Philippines, 1976. Subject: Labor supply -- Philippines -- Bicol Region; Anemia; Labor productivity; Road construction workers -- Philippines -- Bicol Region -- Diseases and hygiene.          Add to Book Cart Relevance: 42.06%