T. Utari, Maria Theresia Sri Budiastuti, and Rhina Uchayani Fajarningsih, “Predictors of Students’ Sustainable Behavior in Green Campus Programs: A Theory of Planned Behavior Approach and Student Perception Analysis at Universitas Sebelas Maret”, IJESSS, vol. 7, no. 4, pp. 1063–1074, Jul. 2026.