Kehayova-Stoycheva, M., Vasilev, J. Measuring the Problem use of Internet - Internal Structures and Dependences. Varna: Knowledge and Business, 2018 pp. 6 - 26, ISSN 2367-7791.
Kehayova-Stoycheva, M., Vasilev, J. Measuring the Problem use of Internet - Internal Structures and Dependences. Varna: Knowledge and Business, 2018 pp. 6 - 26, ISSN 2367-7791.
Kehayova-Stoycheva, M., Vasilev, J. (2018) Measuring the Problem use of Internet - Internal Structures and Dependences, Varna: Knowledge and Business pp. 6 - 26, ISSN 2367-7791.
Kehayova-Stoycheva, M., & Vasilev, J. (2018). Measuring the Problem use of Internet - Internal Structures and Dependences. [Електронен ресурс]. Varna: Knowledge and Business, pp. 6 - 26.
Kehayova-Stoycheva M, Vasilev J. Measuring the Problem use of Internet - Internal Structures and Dependences: [Електронен ресурс]. Varna: Knowledge and Business; 2018. p. pp. 6 - 26. ISBN: ISSN 2367-7791.
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