Gaya APA

The changes of P fractions and solubility of phosphate rock in ultisol treated by organic matter and. (2012). Lampung: Departement of Soil Science Faculty of Agriculture.

Gaya MLA

The changes of P fractions and solubility of phosphate rock in ultisol treated by organic matter and. . Lampung: Departement of Soil Science Faculty of Agriculture, 2012. Artikel.