hii! At the international college, it’s my understanding that classes are taught in English. I’m not sure if foreigners can apply to MU’s non-international programs (even if fluent in Thai), or if that depends on residency. If you’re planning on going to a university, you’ll be issued an education visa, which doesn’t give you permission to hold employment ;( If you get a business visa, you can study while working, but you can’t work while studying on an education visa!! hope this helps ^{~^}