%0 Journal Article %T Cover for Vol. 12, No. 1. %J Categories and General Algebraic Structures with Applications %I Shahid Beheshti University %Z 2345-5853 %D 2020 %\ 01/01/2020 %V 12 %N 1 %P - %! Cover for Vol. 12, No. 1. %R %X %U https://cgasa.sbu.ac.ir/article_87446_a7e000c9d66011a5abdb6400f8446452.pdf