Tetty Wahyuni Panjaitan, ZulfikarLubis & Santi Syafril. “DIFFERENCE OF FETUIN-A LEVEL IN TYPE 2 DIABETES MELLITUS WITH CORONER HEARTH DISASE AND WITHOUT CORONER HEART DISEAS”. International Journal of Research Science and Management, vol. 7, no. 2, Feb. 2020, pp. 6-10, http://ijrsm.com/index.php/journal-ijrsm/article/view/86.