TY - JOUR ID - 87446 TI - Cover for Vol. 12, No. 1. JO - Categories and General Algebraic Structures with Applications JA - CGASA LA - en SN - 2345-5853 Y1 - 2020 PY - 2020 VL - 12 IS - 1 SP - EP - DO - N2 - UR - https://cgasa.sbu.ac.ir/article_87446.html L1 - https://cgasa.sbu.ac.ir/article_87446_a7e000c9d66011a5abdb6400f8446452.pdf ER -