"Valtra Oy Ab – Taloustiedot" [Valtra Oy Ab – Financial data]. Taloussanomat (به فنلاندی). Sanoma News Oy. Archived from the original on 2016-05-30. Retrieved 2016-08-21.
web.archive.org
"Valtra Oy Ab – Taloustiedot" [Valtra Oy Ab – Financial data]. Taloussanomat (به فنلاندی). Sanoma News Oy. Archived from the original on 2016-05-30. Retrieved 2016-08-21.