Gaya APA

GUSNIDAR, . et al (2012). Application of rice straw and tithonia for increasing fertilizer use efficiency on paddy soil . Lampung: Department of Soil Science Faculty of Agriculture.

Gaya MLA

GUSNIDAR, . et al. "Application of rice straw and tithonia for increasing fertilizer use efficiency on paddy soil". Lampung: Department of Soil Science Faculty of Agriculture, 2012. Artikel.