Echon, Nelia P.  <br/><br/>
Jump rope:  excellent cardio-respiratory endurance exercise (care) / 
Nelia P. Echon. 
 - Philippines;  In The Grade School, Inc.,  c2010-2011. 
 - v59 n8, page 331-332:  illustrations;  27cm. 
<br/><br/><label>ISSN: </label>2094-8042 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical fitness.
<br/><br/><label>Dewey Class. No.: </label>DPer 370.105 M72 June 2010-Mar 2011 v. 59 n. 1-10