Gender roles and relationships among selected households in Navotas: Young vs. old couples

由 Cosiquien, Georgina Sy, David, Allan S., Redoblado, Cher Ritz
出版 1997

Determining the most effective promotional tools for low-end Metro Manila game fowl raisers: A research study on the product vionate

由 Bartolome, Harold O., Co, Paul Gershenson, David, Allan S., Ngo, Jeffrey Sy
出版 1998