Márquez-Barquero, M., and C. Azofeifa-Mora. “LEARNING DELIVERY AND COMMITMENT, PERCEIVED MOTOR COMPETENCE, AND ANXIETY WHEN MAKING MISTAKES OR UNDER STRESS: MOTIVATING FACTORS IN ADOLESCENTS FOR ACHIEVEMENT DURING PHYSICAL EDUCATION CLASSES”. MHSalud: Revista En Ciencias Del Movimiento Humano Y Salud, Vol. 16, no. 1, Nov. 2018, pp. 1-12, doi:10.15359/mhs.16-1.3.