EFFENDI A, JANNAH M. PENGARUH PELATIHAN SELF-TALK TERHADAP KEPERCAYAAN DIRI ATLET LARI 100 METER. Character J. Penelit. Psikol. [Internet]. 2019 Jul. 16 [cited 2025 Jun. 24];6(3). Available from: https://ejournal.unesa.ac.id/index.php/character/article/view/29164