The Contribution of the Principal's Managerial Function in Improving the Quality of Education Based on School Exam Results in High Schools in Banten Province Journal title: Journal of Economics, Finance and Management Studies Authors: Prof. Dr. Sudadio, M.Pd , Satiri , Yadi Heryadi , Ahmadi , Vera Maria Subject(s): Economics, Banks and Banking, Marketing, Accounting, Management, Business, Finance