September 6 (SeeNews) - Trading turnover on Bosnia and Herzegovina's Sarajevo Stock Exchange (SASE) dropped to 6.3 million marka ($3.6 million/3.2 million euro) in August from 8.7 million marka the previous month, with mixed index performances as the SASX-10 and SASX-30 gained, but the BIFX declined, the bourse said.