Role of school- based in -service training programmes in enhancing secondary school teachers` competences in mafia district, Tanzania. 

 - Dar es Salaam  University of Dar es Salaam  2019 
 - xii,81p.  30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teachers - in- service training
<br/><br/><label>LC Class. No.: </label> / Kinyaga, Abubakari