Zharkova, S.V., N.I. Shevchuk, and L.V. Sokolova. “Oat Yield With Organic Fertilizer Guminatrin”. Fundamental and Experimental Biology 116, no. 4 (December 30, 2024): 144–152. Accessed December 7, 2025. https://feb.buketov.edu.kz/bmg-vestnik/article/view/858.