If you are in Indonesia and want to read it without breaking the bank:
A search for "Muhammad Martin Lings PDF Indonesia" often yields results on file-sharing sites (e.g., SlideShare, Scribd, 4shared, or academic repositories).
Emphasize checking copyright status and publisher permissions before downloading.
Use WebSearch to compile up-to-date lists of translations, publishers, and authorized digital sources (I can run this if you want current links and publisher names).