Balasagan notably appears in the work of the 10th-century Arab traveller Abu Dulaf al-Yanbu'i, who in his al-Risala al-thania, reports of his journey in the region.
Balasagan is notably mentioned in the writings of 10th-century Arab traveler Abu Dulaf al-Yanbu'i, who documented his travels in the area as described in his al-Risala al-thania.