Sadika is a tributary of the river Vrbanja in Bosnia and Herzegovina. It rises on the northeastern slopes of Zastinje Mountain, at above sea level. The Sadika's confluence with the VrbanjaâÂÂwhich is the largest right tributary of the VrbasâÂÂis below GigoviÃÂi, a village close to the Kotor Varoà ¡-à  iprage road, at above sea level.