interview show rejected viewed coefficient known assumption table result keyword UNIT descriptive retrieval medan research 12th all significantly ABSTRACT significant karya telp right tem adverse investigated simple SUMATERA indonesia questionnaire calculation mail 597 system author ON model PALM study gmail SYSTEM observation RUMIRIS 017 operation sampling likert impact random determined INDONESIA collection accepted risky EFFECT rest fax data instrument whether MAKING garuda variable unstructured MANAGEMENT respondent IMPLEMENTATION determinant SIAHAAN method decision operational information validity will explained seen sample cause very problem 24775 tinggi OF R2 making reserved INFORMATION regression company 0621 make proces unimed analysi socfin OPERATIONAL NORTH com tebing plaza able using other 2017 concluded stratified BANGUN 1st level management H0 equal give used december OIL thu number error influence test how scale included far bina include ha through reliability DECISION based linear school field MILL successful jordanambarita8 economic classical international hotel side busines library use BANDAR 231 PT conference mean not hypothesi SOCFIN