TY - JOUR T1 - سخن نخست TT - سخن نخست JF - pebr JO - pebr VL - 6 IS - 11 UR - http://pebr.faslnameh.org/article-1-195-en.html Y1 - 2016 SP - 3 EP - 4 N2 - M3 ER -