TY - JOUR AU - Hossein Mousa Jafarabadi AU - Nor Haniza Sarmin AU - Mohammad Reza Molaei TI - Completely Simple and Regular Semi Hypergroups JO - Bulletin of the Malaysian Mathematical Society PY - 2012 VL - 35 IS - 2 UR - http://geodesic.mathdoc.fr/item/BMMS_2012_35_2_a9/ ID - BMMS_2012_35_2_a9 ER -