WAHYUDI, Rahmad. Efektivitas Breathing Exercise Terhadap Penilaian Tingkat Kelelahan Pada Pasien Penyakit Jantung Koroner. NURSING UPDATE : Jurnal Ilmiah Ilmu Keperawatan P-ISSN : 2085-5931 e-ISSN : 2623-2871, [S. l.], v. 10, n. 1, p. 70–77, 2019. DOI: 10.36089/nu.v1i1.38. Disponível em: https://ojsnhm.com/index.php/NU/article/view/38. Acesso em: 21 apr. 2026.