8Nguyen Duc Hung. Vietnam-US Economic and Trade Relations: Problems of Yesterday and Today.Vietnam Economic Review, 2005(9).
9An Agreement for Seismic Undertaking for Certain Areas in the South China Sea By and Between China National Offshore Oil Corporation (CNOOC) and Philippine National Oil Company (PNOC). [2005-11-17]http://www. dfa. gov. ph / news / pr / pr2004 / sep /pr524. htm.