DARISMAN, Eka Kurnia; MULYONO; HARWANTO; MOH. HANAFI; GATOT MARGISAL UTOMO; NABILAH AZZAH RAHMAWAN. Content validity of reflective mental training cards for student-athletes: a content validation study. Jurnal Maenpo : Jurnal Pendidikan Jasmani Kesehatan dan Rekreasi, [S. l.], v. 16, n. 1, p. 1–15, 2026. DOI: 10.35194/jm.v16i1.6086. Disponível em: https://jurnal.unsur.ac.id/index.php/maenpo/article/view/6086. Acesso em: 6 jul. 2026.