Jang, Moonsik. <br/><br/>
Jang Youngsil (Korean) : 장영실 / 
Moonsik Jang ; illustrated by Dalsung Kim. 
 - Seoul, Korea :  Gyosumunhwa,  1997. 
 - 95 p. 
<br/><br/><label>ISBN: </label>9788948200720 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Korean language materials.