Del Rosario, Jerwel T. <br/><br/>
Field practice on corn production at ponce-Gomez and Sons Farm at Lubao, Pampanga  [manuscript] / 
Jerwel Tolentino Del Rosario. 
 - Magalang, Pampanga :  Pampanga State Agricultural University,  2017. 
 - 33 leaves ;  28 cm. + 1 CD.