W. Yue, S. Howattanakul, และ S. Chanphong, “Mediating Effect of Self-Efficacy and Club Learning Engagement between Student Organization Atmosphere and College Student Leadership in Universities of Shandong Province”, Int. Edu. J., ปี 4, ฉบับที่ 6, น. 103–117, พ.ย. 2025.