Kim, Tae Kwan. <br/><br/>
(Khmer)  100 World science development:  From the discover of penicillin to smartphones/ 
kim Tae Kwan. 
 - 2nd. 
 - Cambodia:  Sipar,  2021. 
 - 85 p.  ill.  22 cm. 
 - I want to know: World science development.  6. .
<br/><br/> Translated from Korean by Var Sovannrath. 
<br/><br/><label>ISBN: </label>9789924340577 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Penicillin's invention. Smartphone's invention.