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Continue to Chatधातुरहस्य (Dhāturahasya) - Unfolding the secret of root sounds in Sanskrit - An Introduction. https://dhavaldalal.wordpress.com/2017/06/20/%e0%a4%a7%e0%a4%be%e0%a4%a4%e0%a5%81%e0%a4%b0%e0%a4%b9%e0%a4%b8%e0%a5%8d%e0%a4%af-dhaturahasya-unfolding-the-secret-of-root-sounds-in-sanskrit-an-introduction/