Simić, J., J. Bošković, Z. Hojka, M. Vukosav, and R. Sarić. “COMPARATIVE PRODUCTION PROGRAMS AND IMPROVE QUALITY OF AGRICULTURES AND AGRARIAN PRODUCTS”. Economics of Agriculture, vol. 53, no. 2, Apr. 2006, pp. 361-73, https://ea.bg.ac.rs/index.php/EA/article/view/1508.