Guo ji si fa wen ti jie xi/ Mei guo gong si fa pan li jie xi/ Fang di wen ti jie xi/ Ying yu yong fa wen ti jie da/ Zhong guo guo ji fa wen ti lun ji/ Guo ji jie suan an li yu fen xi/ Gong si fa wen ti yan jiu/. Yi. Dang qian jiao yu wen ti tan xi/ Guo ji si fa lun/ guo ji jing ji xue