%0 Journal Article %A Elahe Mohammadzadeh %A Rajab Ali Borzooei %T Results on (Engel, Solvable, Nilpotent) Fuzzy Subpolygroups %J Kragujevac Journal of Mathematics %D 2021 %P 667 %V 45 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KJM_2021_45_5_a0/ %G en %F KJM_2021_45_5_a0