%0 Journal Article %A Muhammad Shabir %A Asghar Khan %T Fuzzy Quasi-Ideals of Ordered Semigroups %J Bulletin of the Malaysian Mathematical Society %D 2011 %V 34 %N 1 %U http://geodesic.mathdoc.fr/item/BMMS_2011_34_1_a7/ %F BMMS_2011_34_1_a7