Molecular Docking Study of Lemon (Citrus limon (Linn) Burm. f) Flavonoid Derivatives Compound in Receptor Cyclooxygenase-1 (COX-1) as Antiplatelet in Ischaemic Stroke Disease In Proceedings of the 1st Muhammadiyah International Conference on Health and Pharmaceutical Development MICH-PhD - Volume 1, 19-25, 2018 , East Jakarta, Indonesia