Hartono, Gino, <br/><br/>
A study of safety program needs of Medan Technical Teacher Upgrading Center as identified by administrators, instructors, and students/ 
by Gino Hartono. 
 - Ann Arbor, Mich. :  University Microfilms International,  1993. 
 - 2 microfiches ;  11 x 15 cm. 
<br/><br/>Thesis (Ph.D.)-Florida State University, 1993 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Safety education--Indonesia--Sumatra.