Степова, О. В. “Analisis Phosphate Pollution Surface Water Poltava Region”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 14 (September 8, 2016): 78-82. Accessed November 21, 2024. https://periodicals.karazin.ua/ecology/article/view/6331.