Wati, Sinar, et al. “Efektivitas Teknik Deep Breathing Dalam Menurunkan Tingkat Kecemasan Siswa : The Effectiveness Of Deep Breathing Technique In Reducing Students’ Anxiety Levels ”. Jurnal Penelitian Pendidikan Bimbingan Dan Konseling (JPPBK), vol. 2, no. 1, Apr. 2026, pp. 71-77, https://journal.matappa.ac.id/index.php/JPPBK/article/view/4459.