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パンチカードシステム (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "パンチカードシステム" in Japanese language version.

refsWebsite
Global rank Japanese rank
17ibm.com
1,131st place
838th place
8columbia.edu
488th place
1,974th place
5bitsavers.org
4,153rd place
low place
2census.gov
45th place
236th place
2nii.ac.jp
304th place
20th place
1patents.google.com
1,182nd place
1,387th place
1ibm-1401.info
low place
low place
1worldcat.org
5th place
19th place
1kogures.com
low place
low place

bitsavers.org

census.gov

columbia.edu

ibm-1401.info

ibm.com

www-03.ibm.com

kogures.com

nii.ac.jp

id.nii.ac.jp

cir.nii.ac.jp

patents.google.com

worldcat.org

search.worldcat.org