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(1997) 운수·통신업통계조사보고서
(1997) 운수·통신업통계조사보고서
통계청, 326.304059-통14우-R | 통계청 | 1998 326.304059-통14우-R,
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INTERNATIONAL TELECOMMUNICATIONS FORUM
한국통신학회 [, ]
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INTERNATIONAL TELECOMMUNICATIONS FORUM
한국통신학회 [공학, ]