A. Yudistira, A. Budhi Prasetio, L. D. Siahaan, and M. A. Sugiarto, “Local Anesthetics Lidocaine and Bupivacaine as Pre-emptive Analgesia in Lumbar Region Degenerative Spinal Surgery Patients with Posterior Approach”, Open Access Maced J Med Sci, vol. 10, no. B, pp. 365–368, Feb. 2022.