Hristovski, S. ., Jordanova, M., Musai, M., Boškovska, V., Rebok, K., Dinevska-Ќovkarovska S. and Melovski, L. (2019) “Heavy metals in water and sediments of the upper course of the river Crn Drim ”, Macedonian Journal of Ecology and Environment, 21(1-2), pp. 73–78. doi: 10.59194/MJEE19211-2073h.