Jurado, M. A. R. . and Castañeda, H. M. M. . (2025) “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. Lahore, Pakistan, 14(13S), pp. 670–678. doi: 10.52783/jns.v14.3342.