Freeman Chain Code Contour Processing For Handwritten Isolated Arabic Characters Recognition: سلسلة فريمان لمعالجة الأحرف العربية المعزولة المكتوبة يدويا وتمييزها. AL-Yarmouk Journal, [S. l.], n. 1, p. 90–105, 2013. Disponível em: https://journal.al-yarmok.edu.iq/index.php/alyarmoukjournal/article/view/783. Acesso em: 28 mar. 2026.