00373    a2200097   450000500170000002000220001710000170003924501290005626000500018530000400023520250626054127.0  a978 9976 4 0432 6  aOMARI, M . I  aMotivation, Instruction, Learning and Human Perfomance: A Practical Guide for Teachers on How to Improve Students Perfomance  aDar Es SalaambOxford University Pressc2011.  aix,84p.:ill.; picturesbIndexc23cm