1. Sociology and modern systems theory;Buckley,1967
2. The development of companionship and intimacy;Buhrmester;Child Development,1987
3. The relationship between peer relationships and smart phone addiction: Self-control as a mediating variable;Chang;Korean Journal of Child Education,2019
4. The effects of group art therapy program on peer relationships of the first grader of elementary school: Focused on Sullivan’s interpersonal relations theory [Master’s thesis];Choi,2012
5. Effects of cognitive behavioral play therapy on self-control of internet game-addicted children [unpublished master’s thesis];Choi,2013