1. Wallace, C. S. (1964). A suggestion for a fast multiplier. IEEE Transactions on electronic Computers, 1, 14–17.
2. Booth, A. D. (1951). A signed binary multiplication technique. The Quarterly Journal of Mechanics and Applied Mathematics, 4(2), 236–240.
3. Bharath, J. S. S., & Tirathji, K. (1986). Vedic mathematics or sixteen simple sutras from the vedas. Varanasi (India): Motilal Banarsidas.
4. Kulkarni, S. (2007). Discrete fourier transform (DFT) by using vedic mathematics. Report, vedicmathsindia. blogspot. com.
5. Nicholas, A., Williams, K., & Pickles, J. (1984). Application of urdhava sutra. Roorkee (India): Spiritual Study Group.