00562nam a22001577a 4500003000800000005001700008008004100025040002100066082001500087245009400102260004300196300002800239500007300267504004100340650002300381BD-DhUL20161030105547.0161030s1982    b  a|||| m||| 00| 0 eng |  aBD-DhULcBD-DhUL  a362.3bETI00aEtiological factors of mental retradation in a rural area of Bangladesh /h[Mphil Thesis]  aDhaka : bUniversity Of Dhaka, c1982.  a80 p. :bill. ;c30 cm.  aThesis (Mph. )-- Department of Psychology, University of Dhaka,1970.  aIncludes bibliographical references.00aMental retradation