D. . BOŽIĆ, M. . GORGIEVSKI, V. . STANKOVIĆ, M. . CAKIĆ, S. . DIMITRIJEVIĆ, and V. . CONIĆ, “BIOSORPTION OF LEAD IONS FROM AQUEOUS SOLUTIONS BY BEECH SAWDUST AND WHEAT STRAW”, Chem. Ind. Chem. Eng. Q., vol. 27, no. 1, pp. 21–34, Apr. 2021.