Wiwin Nofnita Kalalo, Silvya L Mandey, and Irvan Trang. 2021. “Effect of Work Discipline, Work Motivation and Work Environment on Employee Performance (Study on CVBC Cardio Vascular and Brain Center Installation Employees RSUP Prof. Dr. R. D. Kandou Manado)”. Middle European Scientific Bulletin 13 (June). https://cejsr.academicjournal.io/index.php/journal/article/view/634.