Currently for buying and selling bitcoin (and alts) in Bosnia, the best is still Localbitcoins or OLX.ba. There are high limits possible, and domestic bank transfer is the most popular method (transaction happens 100% remotely, anywhere in the country).

However, we are currently in the process of opening a Bitcoin ATM (buy and sell) in Sarajevo, so hopefully soon (1-2 months) you will have that option as well....