“INFLUENCE OF HEAVY METALS AND ORGANIC FERTILIZERS ON CROP OF CORN AND BARLEY”. Proceedings of the YSU B: Chemical and Biological Sciences 38, no. 1 (203) (December 28, 2003): 148–150. Accessed January 21, 2026. https://journals.ysu.am/index.php/proceedings-chem-biol/article/view/vol38_no1_2004_pp148-150.