Brian Williams,Grace Satyadi. (2005). Fakta Paling Top Planet Bumi. Penerbit Erlangga.
Chicago Style (17th ed.) CitationBrian Williams,Grace Satyadi. Fakta Paling Top Planet Bumi. Penerbit Erlangga, 2005.
MLA (8th ed.) CitationBrian Williams,Grace Satyadi. Fakta Paling Top Planet Bumi. Penerbit Erlangga, 2005.
Warning: These citations may not always be 100% accurate.