Tumbelaka, Reyner Valiant, Dwikora Novembri Utomo, and I Ketut Martiana. 2021. “Clinical and Functional Outcome of Cervical Degenerative Disc Disease After Operative Treatment at Dr. Soetomo General Hospital Surabaya In 2013-2018”. Qanun Medika - Medical Journal Faculty of Medicine Muhammadiyah Surabaya 5 (1):69-75. https://doi.org/10.30651/jqm.v5i1.3857.