Liwanag, Ramon Cristopher Y. <br/><br/>
Association between the management practices and occurence of Oesophagostomum spp. on native pigs (Sus scrofa) in Pampanga  [manuscript] / 
Ramon Christopher Yutuc Liwanag. 
 - [Pampanga] :  [Pampanga State Agricultural University],  2015. 
 - xiv, 68 leaves + 1 CD ;  29 cm.