Cobanoglu, Hatice, and Hakan Sevik. “Lithium Concentration in Tree Rings of Cedar(Cedrus Sp) Exposed to Vehicle Pollution”. Mindanao Journal, vol. 43, no. 1, Dec. 2022, pp. 69-78, https://msu-mindanaojournal.com/index.php/ojs/article/view/55.