GARG VIJAY K, W. J. E. (2009). PRINCIPLES & APPLICATIONS OF GSM. PEARSON.
Lua i Stíl Chicago (17ú heag.)GARG VIJAY K, WILKES JOSEPH E. PRINCIPLES & APPLICATIONS OF GSM. NEW DELHI: PEARSON, 2009.
Lua MLA (9ú heag.)GARG VIJAY K, WILKES JOSEPH E. PRINCIPLES & APPLICATIONS OF GSM. PEARSON, 2009.
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