Rajesh Kumar , Dubey. “A NOVEL REFERENCE-FREE OBJECTIVE SPEECH QUALITY PERCEPTION MEASUREMENT USING MULTI-INSTANCES FEATURES OF DEGRADED SPEECH SIGNAL”. International Journal of Psychosocial Rehabilitation, vol. 17, no. No. 2, Dec. 2013, pp. 145-53, https://doi.org/10.61841/4sm8ek92.