Ahmed, A., & Ahmed, S. S. S. (2013). The Value Chain Analysis of Tri-Star Toothbrush and Co. BRAC Business School, BRAC University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAhmed, Arif, और Syeda Shaharbanu Shahbazi Ahmed. The Value Chain Analysis of Tri-Star Toothbrush and Co. BRAC Business School, BRAC University, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAhmed, Arif, और Syeda Shaharbanu Shahbazi Ahmed. The Value Chain Analysis of Tri-Star Toothbrush and Co. BRAC Business School, BRAC University, 2013.
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