BURHAN, Zakir; VANDITA, Lalu Yoga. The Effect of Imagery Exercise and Progressive Muscle Relaxation on Anxiety and Concentration in Soccer Athletes. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, [S. l.], v. 9, n. 2, p. 220–224, 2021. DOI: 10.33394/j-ps.v9i2.4280. Disponível em: https://e-journal3.undikma.ac.id/index.php/prismasains/article/view/4280. Acesso em: 16 aug. 2025.