Analysis of information sources in references of the Wikipedia article "Rockefeller Center" in Indonesian language version.
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(bantuan) tanggal 2012-10-20. Diakses tanggal 2011-02-22. |url=
(bantuan) tanggal 2012-10-20. Diakses tanggal 2011-02-22. |url=
(bantuan) tanggal 2012-10-20. Diakses tanggal 2011-02-22. |url=
(bantuan) tanggal 2012-10-20. Diakses tanggal 2011-02-22.