Wahyono, Yulianto, Pertiwi, Jasmine, AND Risma, Hanif. " Perbedaan Pengaruh Core Stability Exercise Dan William’s Flexion Exercise Terhadap Penurunan Nyeri Pada Penderita LBP Myogenic" Jurnal Fisioterapi dan Rehabilitasi [Online], Volume 8 Number 1 (3 October 2023)