ZURYATY, Zuryaty; LUTFI, Mohammad. PERBEDAAN TERAPI LATIHAN MC KENZIE DAN WILLIAM FLEXION TERHADAP PENURUNAN NYERI PADA PASIEN LBP (LOW BACK PAIN). NURSING UPDATE : Jurnal Ilmiah Ilmu Keperawatan P-ISSN : 2085-5931 e-ISSN : 2623-2871, [S. l.], v. 11, n. 2, 2020. DOI: 10.36089/nu.v11i2.952. Disponível em: https://www.ojsnhm.com/index.php/NU/article/view/952. Acesso em: 25 apr. 2026.