Ivanc, Aleksandar, Jelena Bošković, Jeremija Simić, Zdravko Hojka, and Mirko Sarić. 2006. “ORIENTATION AND IMPROVEMENT OF EDUCATION OF STAFF FOR SUSTAINABLE DEVELOPMENT OF AGRICULTURE AND ENVIRONMENT PROTECTION”. Economics of Agriculture 53 (3). https://www.ea.bg.ac.rs/index.php/EA/article/view/1436.