1.
Akbar A, Zainuddin R. Application of William’s Flexion Exercise in Patients with Low Back Pain Problems: A Literature Review. JLMH [Internet]. 2020Aug.10 [cited 2026May8];1(3):9-14. Available from: https://www.newinera.com/index.php/JournalLaMedihealtico/article/view/122