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21. BELL LABS TECHNICAL JL (AT&T)
ISSN : 1089-7089
ÃâÆÇ»ç : IEEE INC.
±¹°¡ : U.S.A.
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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22. BETTER BUSINESS BY TELEPHONE
ISSN :
ÃâÆÇ»ç : KIRKLEY PRESS INC.
±¹°¡ : UNITEDSTATES
ºÐ·ù :°æ¿µ&°æÁ¦/°æ¿µ/°æ¿µ
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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23. BOTTIN INT`L DU QUEBEC
ISSN : 1198-0249
ÃâÆÇ»ç : QUEBEC DANS LE MONDE
±¹°¡ : CANADA
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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24. BRAZIL TELECOM NEWSLETTER
ISSN : 1095-6271
ÃâÆÇ»ç : INFORMATION GATEKEEPERS, INC.
±¹°¡ : UNITEDSTATES
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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25. BT TODAY
ISSN :
ÃâÆÇ»ç : BRITISH TELECOMMUNICATIONS PLC.
±¹°¡ : UNITEDKINGDOM
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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26. BUSINESS COMMUNICATIONS REVIEW
ISSN : 0162-3885
ÃâÆÇ»ç : MEDIALIVE INTERNATIONAL BCR EVENTS, INC.
±¹°¡ : U.S.A.
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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27. CABLING STANDARDS UPDATE
ISSN :
ÃâÆÇ»ç : BUSINESS COMMUNICATIONS SERVICES
±¹°¡ : UNITEDSTATES
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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28. CANADA. STATISTICS CANADA. TELEPHONE STATISTICS
ISSN : 0707-9753
ÃâÆÇ»ç : STATISTICS CANADA
±¹°¡ : CANADA
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
ºÐ·ù :Âü°í¹®Çå/Âü°í ¹®Çå/ÀϹÝ
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29. CANADIAN COMMUNICATIONS NETWORK LETTER
ISSN : 0825-3021
ÃâÆÇ»ç : EVERT COMMUNICATIONS LTD.
±¹°¡ : CANADA
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
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30. CANADIAN NATIONAL ANNUAL REPORT
ISSN :
ÃâÆÇ»ç : CANADIAN NATIONAL RAILWAYS
±¹°¡ : CANADA
ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/Åë½Å½Ã½ºÅÛ
ºÐ·ù :°úÇÐ&¼öÇÐ/¿î¼Û/ÀϹÝ
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