Isik, S., Z. Kurt, Y. Anagun, and K. Ozkan. “Spam E-Mail Classification Recurrent Neural Networks for Spam E-Mail Classification on an Agglutinative Language”. International Journal of Intelligent Systems and Applications in Engineering, vol. 8, no. 4, Dec. 2020, pp. 221-7, doi:10.18201/ijisae.2020466316.