Gaya APA

WIHARDJAKA, A. et al (2012). Methane emision from direct seeded rice under the influences of rice straw and intrification . Yoyakarta: Gadjah Mada University.

Gaya MLA

WIHARDJAKA, A.. et al. "Methane emision from direct seeded rice under the influences of rice straw and intrification ". Yoyakarta: Gadjah Mada University, 2012. Artikel.