Kinokuniya Plaza Senayan
When I go to the shopping malls, what I always do is go to the bookstores. Even if nowadays we could buy books from the internet, I still love walking and looking around in the bookstores.
Anyway, for Indonesia, you can easily find bookstores that sell English title books. Today I would like to recommend you one of them which is the bookstore named Kinokuniya, a Japanese bookstore chain. Kinokuniya is my favorite bookstore in Indonesia. It does not only sell English title books, but also sells Japanese, Chinese, German, French, etc.
My favorite store is Plaza Senayan branch as they have the large manga comic book sections. If you are a manga fan, I do recommend you visit this branch.