... bi~u di~n tri tlnrc tienhanh mot<icac doi trro'ng ,cac strkien, cac quan niern va m9tphan cac mdi quan h~ giirachungvoinhau. M6i phtro'ng ph ap bi~u di~n tri thtrc d'eu ... di~n,giao di~nngiroidung, b9 giii thichvab9 thunaptri thirc. Trongcacth anhphfinnay quan trongnhatlaco' so' tri thircva mfto' suy di~n. C6 th€ n6i rhg"H~ ... system of the export system.Tomt~t. Mucdichcilabai bao la cug d1pmetsothufit toanlien quan Mnviectrmbao d6ngciiat%pS\!'kien va loai boS\!'duoth ira cd a h~ lu%t trong...