K. Ravi Kumar, K. Bindu Sri, K. V. Sanjay, P. Naveen Kumar, S. Sandhya, Y. Mallikarjuna Rao, P. V. Subbaiah, Ch. Seshu Kumar 2020. A Review on Beamforming Approaches for Speech Enhancement. International Journal of Control and Automation. 13, 4 (May 2020), 590 - 595.