Urian, Mary Ariane C. <br/><br/>
Effect of organic fertilizer on the vitamin C, sugar and organic acid contents of native tomato (Lycopersicumesculentum Miller) and plum tomato (Lycopersiconesculentum)  [manuscript] / 
Mary Ariane C. Urian. 
 - Magalang, Pampanga :  Pampanga Agricultural College,  2011. 
 - 88 pages ;  27 cm.