Trajanova, Katerina, Robert Šajn, and Trajce Stafilov. “Distribution of Chemical Elements in Surface Waters from the Strumica River Basin, North Macedonia”. Macedonian Journal of Ecology and Environment 25, no. 1 (July 7, 2023): 43–55. Accessed April 18, 2024. https://mjee.org.mk/index.php/mjee/article/view/212.