Tài liệu tham khảo WikiPedia: İshak Doğan https://www.national-football-teams.com/player/540... https://int.soccerway.com/players/ishkan-dogan/141... https://www.uefa.com/teamsandplayers/players/playe... https://www.tff.org/Default.aspx?pageId=526&kisiId...