It's time to learn Indonesian

Which language do you think they speak in Indonesia? Malay, Indonesian or Bahasa? Have you ever learned it or do you know anyone who speaks it? Many people may recognize this language as Bahasa, and what does Bahasa really mean because there is also another way of calling this language, such as Malay language and Indonesian language. If you have read about Indonesia in the encyclopedia, you must have noticed that the official language is written as Indonesian. However, you might have seen language books for learning Malay/ Indonesian or you might have read many blog articles that mention “Bahasa”. So, which one is the correct name?