Diktat public health II & III 

 - Surabaya, Indonesia :  Brata D.,  [n.d] 
 - 189 p. ;  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occupational health and safety
<br/><br/><label>National Library of Medicine Call No.: </label>WA100.3  / .D575 9