Development Of SMR Training Model in Forehand Tennis Groundstroke  Technique Aged 14-16 Years. Lembaran Ilmu Kependidikan, [S. l.], v. 54, n. 1, p. 176–187, 2025. DOI: 10.15294/lik.v54i1.18300. Disponível em: https://journal.unnes.ac.id/journals/LIK/article/view/18300. Acesso em: 7 dec. 2025.