PERAN ACCEPTANCE COMITMENT THERAPY TERHADAP KEPERCAYAAN DIRI ATLET PENCAK SILAT PELATDA SUMATERA UTARA. JIK [Internet]. 2021 Jul. 1 [cited 2026 Mar. 18];20(1):65-72. Available from: https://jurnal.unimed.ac.id/2012/index.php/JIK/article/view/26282