00361nam a22001097a 4500020001800000082001400018100001700032245008400049260005900133300001000192650004900202  a9788173919831  a371.9 SUM  aSuman Sindhu  aUtilization and maintenance of teaching-learning material (TLM) /cSuman Sindhu  aNew Delhi :bKanishka Publishers, Distributors, c2007  a70 p.  aTeaching -- Aids and devices -- Preservation