TY - JOUR AU - Young Bae Jun AU - Hee Sik Kim AU - Chul Hwan Park TI - Positive Implicative Ideals of BCK-Algebras Based on a Soft Set Theory JO - Bulletin of the Malaysian Mathematical Society PY - 2011 VL - 34 IS - 2 UR - http://geodesic.mathdoc.fr/item/BMMS_2011_34_2_a13/ ID - BMMS_2011_34_2_a13 ER -