Freeman Donald, Graves Kathleen, & Lee Linda. (2004). ICON: International Communication Through English - Intro Workbook. American: Mc Graw-Hill.
Chicago Style aipamenaFreeman Donald, Graves Kathleen, và Lee Linda. ICON: International Communication Through English - Intro Workbook. American: Mc Graw-Hill, 2004.
MLA aipamenaFreeman Donald, Graves Kathleen, và Lee Linda. ICON: International Communication Through English - Intro Workbook. American: Mc Graw-Hill, 2004.
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