00318nam a22001097a 4500020001800000082001600018100002400034245005700058260005900115300001100174650002300185  a9788184577600  a371.914 SIN  aSinha, Kumar Dhiraj  aElements of hearing impairment /cKumar Dhiraj Sinha  aNew Delhi :bKanishka Publishers, Distributors,c2017.  a248 p.  aHearing impairment