Here's one : http://aimjakarta.com/english/course-options/learn-bahasa-indonesia/

For private courses. Just googling it. https://www.google.co.id/search?q=indonesia+language+course&oq=indonesia+language+course&aqs=chrome..69i57j0l5.15541j1j7&sourceid=chrome&es_sm=122&ie=UTF-8 For universities, there’s a program called BIPA. It’s for international students who study Bahasa Indonesia. In Depok (near Jakarta), there is a national university called Universitas Indonesia. I’m not really sure about the system though. Cuz it’s a uni! And for private university there’s Universitas Darma Persada. I don’t know they open a class for Bahasa Indonesia program or not, especially for foreigners. But if I have links to this university, I would recommend you to contact the teacher, especially the teacher from Japanese language programs. They’re very well-known for the Japanese program so I’m sure you could find one who is available to teach you privately. Lastly, I have a relative in Jakarta who graduated from Japanese language program and have experiences in becoming a guide tour for Japanese. I’ve never contacted her, but my auntie do. Not sure, she’s available to teach or not because she has worked and is a housewife.

Hi Kevin! Actually I dont know where you can study Bahasa in Jakarta. But you can learn it from native speakers. Because we are very welcome if you want to learn our mother tongue. And absolutely you can chat me too