TY - JOUR TI - Modeling of copper removal from aqueous solutions by using carbon-based adsorbents derived from hazelnut and walnut shells by artificial neural network AU - KAYA, N. AU - ERDEM, F. JO - Sigma Journal of Engineering and Natural Sciences PY - 2022 VL - 40 SP - 695 EP - 704 DO - 10.14744/sigma.2022.00085 ER -