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Lua i Stíl Chicago (17ú heag.)Ahmed, Asif Hassan, agus Zaheed Husein Mohammad Al-Din. Buying and Buyer Communication Strategy. BRAC University, 2017.
Lua MLA (8ú heag.)Ahmed, Asif Hassan, agus Zaheed Husein Mohammad Al-Din. Buying and Buyer Communication Strategy. BRAC University, 2017.
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