Nouri, Leila, and Hossein Mohammadzadeh Saany. 2022. “(Completely) Weak Simple Semigroups and (Completely) Weak 0-Simple Semigroups”. Proyecciones (Antofagasta, On Line) 41 (1):83-99. https://doi.org/10.22199/issn.0717-6279-4050.