कालीकल्पद्रुवल्लरी- Kali Kalpadru Vallari - An Exhaustive Book on The Worship of Kali
From Hindupedia, the Hindu Encyclopedia
कालीकल्पद्रुवल्लरी - Kali Kalpadru Vallari - Dr. Ramnarayan Tripathi - An exhaustive guide on the worship and symbolism of Goddess Kali.