Ex ante assessment of crop biotechnology products a practical guide - Elazegui, Dulce D.; Dumayas, Elvira E.; Depositario, Dinah PT; Chupungco, Agnes R.; Alfonso, Antonio A.; Abgona, Remedios V.; Rola, Agnes C.; Mojica, Loida E.; Narciso, Josefina O.; Nguyen, Miriam R. (University of the Philippines Los Baños, 2008)