2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/42431In this article we give an overview of CP-violation for both K^0 (\bar{K}^0 ), B^0 (\bar{B}^0), and B_s(\bar{B}_s) systems. Direct CP-violation and mixing induced CP-violation are discussed for K^0(\bar{K}^0), and B^0(\bar{B}^0) decays.18 pages+seven postscript figures, RevTeX; Our discussion over the subject is entirely different to that of hep-ph/9707545High Energy Physics - Phenomenologytext