குழாய்க்கம்மியர்  Fitter, Turner, Machinist & Machinist grinder 

 - Chennai  National Instructional media Institute, Chennai  2013 
 - 223p. 
<br/><br/><label>ISBN: </label>9788192550688 
<br/><br/><label>Dewey Class. No.: </label>620  / PUL