Analysis of information sources in references of the Wikipedia article "Eastman Kodak" in Indonesian language version.
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(bantuan). World Patent Information. 19 (3): 239. September 1997. doi:10.1016/s0172-2190(97)90099-5.|url=
(bantuan). World Patent Information. 19 (3): 239. September 1997. doi:10.1016/s0172-2190(97)90099-5.