OT, CHANDY. <br/><br/>
Study on powder tiller's wheel slip when tillage operation, ការសិក្សាលើភាពទួងតង់គោយន្តពេលដំណើរការភ្ជួរដី 

 - Phnom Penh  RUA  2001 
 - 44p.  ill.  29cm. 
<br/><br/><label>Dewey Class. No.: </label>ATM OT 2001 B192 Or.1