Gaya APA

HAKIM, N. et al (2012). Application of organic fertilizer tithonia plus to control iron toxicity and reduce commercial . Lampung: Department of Soil Science Faculty of Agriculture.

Gaya MLA

HAKIM, Nurjajati. et al. "Application of organic fertilizer tithonia plus to control iron toxicity and reduce commercial ". Lampung: Department of Soil Science Faculty of Agriculture, 2012. Artikel.