JUNAIDI. PENGEMBANGAN ALAT UKUR KEPERCAYAAN DIRI ATLET BULU TANGKIS PBSI KABUPATEN PIDIE. Jurnal Penjaskesrek, [S. l.], v. 4, n. 2, p. 136–150, 2017. DOI: 10.46244/penjaskesrek.v4i2.786. Disponível em: https://ejournal.bbg.ac.id/index.php/penjaskesrek/article/view/786. Acesso em: 3 aug. 2026.