Thank you ดร. จันทวรรณ ปิยะวัฒน์

When I tried class.in.th, I did not find it 'open for my purpose'.

I will have a look at classstart.org and see if I can fit in better.

Please call me 'sr' because I am not teaching anyone. I am telling story for friends and on-lookers. If you find any value in the story, it is yours to keep for all times ;-)