“COMPARATIVE ANALYSIS OF METHODS FOR DETERMINING HUMUS FRACTIONS IN THE COMPOSITION OF GRAY SOILS (I.V.TYURIN AND V.N.SMAKOV)”, JARTES, vol. 2, no. 2, pp. 59–63, Apr. 2023, Accessed: Jun. 16, 2025. [Online]. Available: https://www.ijournal.uz/index.php/jartes/article/view/518