Balderas, Marilyn Borbe <br/><br/>
Pollen sources of stingless bees (Trigona biroi) in relation to floral bloom pattern in selected ecosystems in Camarines Sur 
Marilyn Borbe Balderas 
 - Bicol  Central Bicol State University of Agriculture  2012 
 - xx, 162p. 
<br/><br/>Doctor of Philosophy 
<br/><br/><label>LC Class. No.: </label>T-00844