Natyashastra
अन्येऽपि देशाः प्राच्यां ये पुराणे सम्प्रकीर्तिताः । तेषु प्रयुज्यते ह्येषा प्रवृत्तिश्चोढ्रमागधी ॥ ४७॥
Other regions, also mentioned in the ancient texts as belonging to the eastern part, use the Odhramāgadhī style in their practices.
english translation
anye'pi dezAH prAcyAM ye purANe samprakIrtitAH । teSu prayujyate hyeSA pravRttizcoDhramAgadhI ॥ 47॥
hk transliteration by Sanscript