Tài liệu tham khảo WikiPedia: Nebiat Habtemariam http://www.iaaf.org/Mini/WHM12/News/NewsDetail.asp... http://www.iaaf.org/mm/Document/Competitions/Compe... https://books.google.com/books?id=WLjaAgAAQBAJ&pg=... https://www.sports-reference.com/olympics/athletes... https://web.archive.org/web/20200417174246/https:/... https://www.iaaf.org/athletes/biographies/athcode=...
