Ghofur, Amin Ghoni, et al. “The Effects of Ketamine and Propofol Sedation on Patients Undergoing Curettage With General Anesthesia Based on the Bispectral Index Score”. Viva Medika: Jurnal Kesehatan, Kebidanan Dan Keperawatan, vol. 16, no. 4, Oct. 2023, pp. 438-45, doi:10.35960/vm.v16i4.1177.