Canonical Ref: SP 17.34
Sanskrit (Devanāgarī)
२. चतस्रो वृत्तयः — भारती, आरभटी, कैशिकी, सात्त्वती चेति।
Canonical CTS URN Reference
Śṛṅgāraprakāśa of Bhoja, SP 17.34. Poorvam Open Research Engine (PORE) Corpus.