00607nam a2200193Ia 4500 CTU_54576 210402s9999 xx 000 0 und d 9600 651.75 Đ105 Nguyễn Trọng Đàn Giáo trình thư tín trong thương mại quốc tế = Correspondence in international commerce in English: Textbook Nguyễn Trọng Đàn Tp. HCM Tp. HCM 2003 commercial correspondence Trung tâm Học liệu Trường Đại học Cần Thơ