Hasmar, Wanti, Faridah Faridah, and Putra Hadi. 2023. “PERBEDAAN PENGARUH CORE STABILITY EXERCISE DAN WILLIAM FLEXION EXERCISE TERHADAP LOW BACK PAIN MYOGENIK : DIFFERENCES IN THE EFFECT OF CORE STABILITY EXERCISE AND WILLIAM FLEXION EXERCISE ON MYOGENIC LOW BACK PAIN”. Quality : Jurnal Kesehatan 17 (1):64-71. https://doi.org/10.36082/qjk.v17i1.908.