Their literature poses a significant influence on their Tibetan counterparts .
In the past , when there was no writing , the Lhobas kept track of history through telling their descendants and tying knot codes about their past .
Lhobas ' literature poses a significant influence on their Tibetan counterparts .
In the past , when there was no writing , the Lhobas kept track of history through telling their descendants and tying knot codes about their past .