ŞAYAN, Enes, and Berrak BAŞAR. 2019. “Adsorption of Cu2+, Ni2+ And Zn2+ from Aqueous Solutions on Activated Carbons Prepared from Ultrasound-Assisted KOH-Impregnated Hazelnut Shell in Multi-Ion System”. International Journal of Natural and Engineering Sciences 10 (1):28-30. https://ijnes.org/index.php/ijnes/article/view/255.