PURCARIU, M. . “TAGGING BEHAVIOR IN TUTORIALS ON YOUTUBE: A CASE STUDY APPROACH”. Studia Universitatis Babeș-Bolyai Ephemerides, vol. 60, no. 2, Dec. 2015, pp. 61-74, http://193.231.18.162/index.php/subbephemerides/article/view/4607.