Harmawan, Endra Wibisono, Muhammad Arifin Parenrengi, Abdul Hafid Bajamal, Eko Agus Subagio, Sri Andreani Utomo, and Budi Utomo. “The Relationship Between Intervertebralis Disc Height and pfirrmann’s Degenerative Degree: : In Lumbar Degenerative Disease Patients Performed Surgery at Dr. Soetomo General Academic Hospital Period of 2016-2021”. International journal of health sciences 6, no. S6 (August 16, 2022): 7129–7155. Accessed August 16, 2024. https://sciencescholar.us/journal/index.php/ijhs/article/view/11804.