00478nam a2200169Ia 4500 CTU_234549 210402s9999 xx 000 0 und d 0 510 T406 Toán học và tuổi trẻ Nxb. Giáo dục Việt Nam Hà Nội Nxb. Giáo dục Việt Nam 2018 Mathematics,Toán học Trung tâm Học liệu Trường Đại học Cần Thơ