Mohit sharma & Sujit kumar <br/><br/>
IAS mains General Studies Paper 4 

 -  "Arihant Publications ltd, New Delhi"  2022 
<br/><br/><label>ISBN: </label>978-93-27195-29-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Competive book
<br/><br/><label>Dewey Class. No.: </label>A   R22;1