INSTRUCTION MODEL FOR THE OPTIMIZATION OF TEACHING FOOTBALL TO FIFTH GRADERS OF THE SPORTS HIGH-SCHOOL OF BACAU, ROMANIA. FIEP-Bulletin [Internet]. 20º de abril de 2017 [citado 9º de maio de 2025];87(1). Disponível em: https://ojs.fiepbulletin.net/fiepbulletin/article/view/5763