APA Citation

Humas, U. (2010). Hari Bumi, UMM Car Free Day. Humas UMM.

Chicago Style Citation

Humas, UMM. Hari Bumi, UMM Car Free Day. Humas UMM, 2010.

MLA Citation

Humas, UMM. Hari Bumi, UMM Car Free Day. Humas UMM, 2010.

Warning: These citations may not always be 100% accurate.