Haka, F., and A. Pervizi. “The Interplay Between Bullying, Self - Esteem, and Empathy in a Sample of Albanian 12 - 16 Year Old Adolescents”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 29, no. 1, Mar. 2017, pp. 116-23, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/2696.