Stamovlasis, Dimitrios, Georgia Stavropoulou, and Eleni Karastergiou. 2021. “Nonlinear Effects of Performance-Avoidance on Self-Efficacy: A Cusp Catastrophe Model”. Journal of Psychology and Psychotherapy Research 8 (June):29-36. https://doi.org/10.12974/2313-1047.2021.08.4.