Jurado, M. A. R. ., and H. M. M. . Castañeda. “Regulation In Procurement Of Goods And Services For Amounts Up To 8 Uit Tax Units And Efficiency In Purchases Of The Social Health Security - Essalud, 2022”. Journal of Neonatal Surgery, vol. 14, no. 13S, Apr. 2025, pp. 670-8, doi:10.52783/jns.v14.3342.