Šporčić, B., and R. Glavak-Tkalić. “The Relationship Between Online Gaming Motivation, Self-Concept Clarity and Tendency Toward Problematic Gaming”. Cyberpsychology: Journal of Psychosocial Research on Cyberspace, vol. 12, no. 1, July 2018, p. Article 4, doi:10.5817/CP2018-1-4.