Powell, J., Williams, V., Atherton, H., Bennett, K., Yang, Y., Davoudianfar, M., . . . Griffiths, K. (2020). Effectiveness and cost-effectiveness of a self-guided internet intervention for social anxiety symptoms in a general population sample: Randomized controlled trial. Journal of Medical Internet Research.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Powell, J., et al. Effectiveness and Cost-effectiveness of a Self-guided Internet Intervention for Social Anxiety Symptoms in a General Population Sample: Randomized Controlled Trial. Journal of Medical Internet Research, 2020.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Powell, J., et al. Effectiveness and Cost-effectiveness of a Self-guided Internet Intervention for Social Anxiety Symptoms in a General Population Sample: Randomized Controlled Trial. Journal of Medical Internet Research, 2020.