Janković, A., M. Ćujić, M. Stojković, M. Đolić, D. Živojinović, A. Onjia, M. Ristić, and A. Perić Grujić. “Impact of Leaching Procedure on Heavy Metals Removal from Coal Fly Ash: Original Scientific Paper”. HEMIJSKA INDUSTRIJA (Chemical Industry), vol. 78, no. 1, Jan. 2024, pp. 51-62, doi:10.2298/HEMIND230901001J.