AT BANKING simultaneously sumatera rate RAHAYU ali show darussalam selected interest 542 result keyword student islam medan ZAKAH research 12th banking all 361 factor below ABSTRACT right negatively SUMATERA 2015 sharing indonesia conventional ON inflation study affect sharif sharia SAPARUDIN islamic sampling accounting examine BIN negeri consideration data utara garuda conclusion ABDUL variable sultan IN testing IMPLEMENTATION method investing year MUDHARABAH mudharabah 164 universita listed will sample gros OF state registered UTARA reserved purposive SRI NASEER value indicate company 255 secondary brunei unimed AFFECTING profit province SIREGAR plaza product using FACTORS AZIZUL significance university RONI 2017 commercial domestic 1st KHOLIS bank faculty PROVINCE used december finance investor population 048 statistical ha while based deposit 589 see north economic international ISLAMIC hotel busines conference aim growth not companie effect FINANCIAL hypothesi above