Analysis of information sources in references of the Wikipedia article "Sejarah dunia" in Indonesian language version.
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akan diabaikan (bantuan)|publisher=
(bantuan)Fire was used by Homo erectus in northern China more than 400,000 years ago, and there is sketchy evidence suggesting that it may have been used long before that (Gowlett, 1984:181–82)
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(bantuan). Diarsipkan dari versi asli tanggal 2012-10-03. Diakses tanggal 1 Mei 2011.|isbn=
(bantuan).A stone slab bearing 3,000-year-old writing previously unknown to scholars has been found in the Mexican state of Veracruz, and archaeologists say it is an example of the oldest script ever discovered in the Americas.
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(bantuan). Diarsipkan dari versi asli tanggal 2012-10-03. Diakses tanggal 1 Mei 2011.|doi=
(bantuan). Diarsipkan dari versi asli tanggal 2012-10-03. Diakses tanggal 1 Mei 2011.Fire was used by Homo erectus in northern China more than 400,000 years ago, and there is sketchy evidence suggesting that it may have been used long before that (Gowlett, 1984:181–82)
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(bantuan)