Physics & chemistry  :  for OCS (Preliminary) examination / 
Vanik Education 
 - Bhubaneswar:  Vanik  Education;  2022 
 - 160p.;  27 cm 
<br/><br/><label>ISBN: </label> N.P. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Examination, questions etc. <br/>Chemistry--Examinations, questions etc. 
<br/><br/><label>Dewey Class. No.: </label>R.R. 500  / P 569