Gajić, Boško, Zorica Sredojević, and Goran Dugalić. “SOIL INDICATORS IN SUSTAINABLE AGRICULLTURE PRODUCTION”. Economics of Agriculture 53, no. 2 (April 30, 2006): 441–450. Accessed April 28, 2024. https://ea.bg.ac.rs/index.php/EA/article/view/1516.