Bharata's Natya Shastra IS the correct match - it's the foundational Sanskrit text on dramaturgy and performance theory (c. 200 BCE-200 CE). Mamata wrote on Vakrokti (in Kavyaprakasham); Abhinavagupta wrote on Dhvani (in Dhvanyaloka Locana); Vamana wrote on Riti theory, not Dhwanyaloka (that's Anandavardhana).