Mahardhika, Aria Windy, Sugeng Budi Santosa, and Bambang Novianto Putro. 2019. “Effects of MgSO4 or Fentanyl Addition to Lidocain 5%’s Spinal Anaesthesia Profile”. Cermin Dunia Kedokteran 46 (4):247-51. https://doi.org/10.55175/cdk.v46i4.476.