Ahadi, B. (2009). Relationship between loneliness and self-esteem with student attachment styles. Journal of Psychological Studies, 5 (1), 112-95. [persian]
Alavi. S., Merasi, M., Janatifard, F., Eslami, M., & Haghighi, M. (2010). The relationship between psychiatric symptoms with Internet addiction among students of Isfahan University. Hamadan University of Medical Sciences, 17, 57- 65. [Persain]
Asher, S.R., & Paquette, J.A. (2003). Loneliness and peer relations in childhood. Current Directions in Psychological Science, 12(3), 75-78.
Askari, P., & Marashiyan, F. (2009). The Relationship between Personality Characteristics and Computer Anxiety by Addiction to the Internet in the Students of Islamic Azad University of Ahvaz. New Findings in Sociology, 2(7), 23-35. [Persian]
Black, K. (2009). Exploring adolescent loneliness and companion animal attachment, Doctoral Dissertation, University of New Mexico.
Booth, R. (2000). Loneliness as a component of psychiatric disorders. Medscape Mental Health, 2(2), 1-7.
DiTommasso, E., & Brannen, C., & Best, L.A. (2004). Measurement and validity characteristics of the short version of the social and emotional loneliness scale for adults. Educational and Psychological Measurement, 64(1), 99-119.
Dunn, J.C., Dunn, J.G., & Bayduza, A. (2007). Perceived athletic competence, socio-metric status and loneliness in elementary school children. Journal of Sport Behavior, 30(3), 249-269.
Ghasemi, V., & Malek Ahmadi, H. (2010). Explaining Addiction to the Internet among Shahin Shahr Infidences. Quarterly Journal of Relationships Research, 17(4), 51. [Persian]
Hamburger, Y.A., & Ben-Artzi, E. (2000). The relationship between extraversion and neuroticism and the different uses of the Internet. Computers in Human Behavior, 16, 441–449.
Hamburger, Y.A., & Ben-Artzi, E. (2003). Loneliness and Internet use. Computers in Human Behavior, 19, 71–80.
Heinrich, L.M., & Gullone, E. (2006). The clinical significance of loneliness: A literature review. Clinical Psychology Review, 26(6), 695-718.
Horowitz, L., & French, R.D. (1979). Interpersonal problems of people who describe themselves as lonely. Journal of Consulting and Clinical Psychology, 47, 762-764.
Hughes, M.E., Waite, L.J., Hawkley, L.C., & Cacioppo J. T. (2004). A short scale for measuring loneliness in large surveys: Results from two population based studies. Research on Aging, 26, 655-72.
Jacob, D. (2015) http://time.com/money/3896219/internet-users-worldwide.
Kafashi, M. (2010). Investigating Internet Impact on Family Values. Social Research, 2(3), 57-78. [persian]
Kraut, R., Patterson, M., Landmark, V., Kiesler, S., Mukophadhyay, T., & Scherlis, W. (1998). Internet paradox: a social technology that reduces social involvement and psychological well-being?, American Psychologist, 53(3),1017-1031.
Mashayek, M., Borjali, A. (2003). Investigating the relationship of loneliness with the type of Internet use in a group of high school students. New Cognitive Science, 5(1), 39-44. [persian]
Neto, F. & Barros, J. (2000). Psychosocial concomitants of loneliness among students of Cape Verde and Portugal. Journal of Psychology, 134(5), 503-514.
Odacı, H., & Çelik, Ç.B. (2013). Who are problematic Internet users? An investigation of the correlations between problematic Internet use and shyness, loneliness, narcissism, aggression and self-perception. Computers in Human Behavior, 29(6), 2382–2387.
Orang, T. (2004). Studying the Psychological Causes of Chatting in Tehran. Following a Master's Degree in Psychology, University of Tehran.
Saklofske, D.H., Yackulic, R.A., & Kelly, I.W. (1986). Personality and loneliness. Personality and Individual Differences, 7, 899–901.
Salimi, A., Jokar, B., & Nikpour, R. (2009). Internet communication in life: The role of perceived social support and loneliness in the use of the Internet. Psychological studies, 5(3), 81-102. [persian]
Salimi, A. (2008). Searching model about prognosis and consequences of loneliness, master's thesis. [persian]
Stoeckli, G. (2010). The role of individual and social factors in classroom loneliness. The Journal of Educational Research, 103, 28-39.
Whitty, M.T., & McLaughlin, D. (2007). Online recreation: The relationship between loneliness, Internet self-efficacy and the use of the Internet for entertainment purposes. Computers in Human Behavior, 23(3), 1435–1446.
Widyanto, L., & McMurran, M. (2004). The psychometric properties of the Internet addiction test. Cyberpsychology and Behavior, 7(4), 443– 450.
Young, K.S. (1996). Internet addiction: The emergence of a new clinical disorder. Paper presented at the 104th annual meeting of the American Psychological Association, August 18, 1996. Toronto, Canada.
Young, K.S. (2004). Internet addiction: A new clinical phenomenon and its consequences. American Behavioral Scientist, 48, 402–415.