Zekić, Vladislav, Nedeljko Tica, Dragan Milić, and Zoran Bačkalić. “ECONOMIC CHARACTERISTICS OF CONCRETE PRODUCTION FROM FLY ASH AS A WAY OF LAND RECULTIVATION”. Ekonomika poljoprivrede 61, no. 1 (January 31, 2014): 63–71. Accessed July 22, 2024. https://ea.bg.ac.rs/index.php/EA/article/view/397.