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Efektivitas Teknik Deep Breathing Dalam Menurunkan Tingkat Kecemasan Siswa : The Effectiveness Of Deep Breathing Technique In Reducing Students’ Anxiety Levels . JPPBK. 2026;2(1):71-77. Diakses Agustus 26, 2026. https://journal.matappa.ac.id/index.php/JPPBK/article/view/4459