Hello all,
I made a small tutorial (? hope it is!) for BASIC in Greek here (in pdf):
https://amstradsakis.blogspot.com/2021/04/tutorial-for-basic-in-greek.html (https://amstradsakis.blogspot.com/2021/04/tutorial-for-basic-in-greek.html)
Of course my knowledge is limited and maybe some things may need correction, or have better solutions. But i did not find many things in Greek, and I thought that some people with little knowledge may benefit. I added also some useful appendixes from the manual in the end. At about 30 commands are explained and there are 3 small programs in the end.