MSWLogo

https://sites.google.com/site/tinhoctieuhoc90/home/de-thi-tht?authuser=0

kiến thức
https://vi.wikipedia.org/wiki/MSWLogo
https://1drv.ms/f/s!AsPkmnnIbzsMifJG6L09mOlwEiWZWQ

http://thtamhiep.pgdchauthanhtg.edu.vn/upload/53746/fck/files/Gi%C3%A1o%20tr%C3%ACnh%20MswLogo%20K5.pdf