Kaplan, O., N.C. Yildirim, N. Yildirim, and E.A. Akyol. 2010. “Physico-Chemical and Microbiological Water Quality Assessment of Perisuyu River, Tunceli, Turkey”. Asian Journal of Chemistry 23 (2):907-9. https://asianpubs.org/index.php/ajchem/article/view/15894.