Lindo, Juanito M. Jr. <br/><br/>
Yield and profitability of selected varieties of sweet potato (Ipomea batatas L.) applied with different sources of fertilizer  [manuscript] / 
Juanito M. Lindo Jr. 
 - Magalang, Pampanga :  Pampanga Agricultural College,  2014. 
 - 69 pages ;  27 cm.