Barradas-Guevara, J. E., O. Felix-Beltran, and E. Rodriguez-Jauregui. “Higgs Sector With Spontaneous CP Violation in S(3) Standard Model”. Journal of Nuclear Physics, Material Sciences, Radiation and Applications 4, no. 1 (August 8, 2016): 221–239. Accessed November 29, 2022. https://jnp.chitkara.edu.in/index.php/jnp/article/view/124.