The one way to buy it is in Indonesia. Bitcoin.co.id
But it's 20% more expensive there.
Anywhere else?
We are located at Indonesia, Singapore, US.
(by fiat of course, otherwise there are tons of options)
just use the largest exchanges like bitstamp or gdax, perhaps coinbase and itbit. You shouldn't be facing any issues there. Of you can always buy crypto p2p through localbitcoins