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141
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142
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143
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144
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145Argitaratua 1987GaiakAldizkaria
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146
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147Argitaratua 1992GaiakAldizkaria
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148
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149Argitaratua 2003Gaiak “...Telecommunication Safety measures....”
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150
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151Argitaratua 2006Gaiak “...Telecommunication Mathematics....”
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152
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153nork Naughton, John (John J.)Gaiak “...Telecommunication History 20th century....”
Argitaratua 2000
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154
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155
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156
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157
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158
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159Argitaratua 1983Gaiak “...Telecommunication Data processing Congresses....”
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160