100 Scientific discoveries around the world 3 (Khmer) /  
written by Kim Tae-Kwan.Illustrated by Mun Pyeong-yun. Translated by Va Sovannaroth. 
 - Phnom Penh :  Silpar ;   2018. 
 - 97 pages. 
<br/><br/><label>ISBN: </label>9789924340188