Listra Isabela Barus, Puji Pinta O. Sinurat & Chairil Amin Batubara. “THE DIFFERENCES OF ANTITHROMBIN III, FIBRINOGEN, AND TROPONIN I LEVELS BETWEEN ACUTE ISCHEMIC STROKE AND ACUTE HEMORRHAGIC STROKE”. International Journal of Research Science and Management, vol. 6, no. 4, Apr. 2019, pp. 17-21, http://ijrsm.com/index.php/journal-ijrsm/article/view/199.