I understand there is a lady working at Surabaya grammar school whom does not have the required work permit or papers to work there.
She has been working there since June 2015.
She is not paying any income tax.
Goes by the name of Bekks.
If you check out her Facebook page, she uses the name , mothership abroad.
There are many photographs of herself at and with the children that she is teaching there.
I believe that she leaves every three months for approximately one week, there for coming and going from Indonesia on three month visitors visa.
I don't think it is very ethical for anyone teaching little children to be posting photographs of them on Facebook.