No, you don't have to. It is not necessary for you to be an Indonesian citizen to attend an Indonesian school.
to pay tax
No, I don't think so.
around 6 hours
What school, you mean when their not sewing Prada and Louis Vitton purses.
Indonesian can refer either to the Austronesian Language spoken in Indonesia and closely related to Malay and more distantly related to Tagalog and indigenous Taiwanese Languages, or to any holder of...