00560nam a2200181Ia 4500 CTU_14835 210402s9999 xx 000 0 und d 519.5076 L561 Lê Lương Bài tập lí thuyết thống kê Có lời giải mẫu Lê Lương, Dư Quang Nam Tp. HCM Trường Đại học Kinh Tế Tp. HCM 1996 mathematical statistics Trung tâm Học liệu Trường Đại học Cần Thơ