Frier, S., & Womack, B. Young App makers spurn 3-B Facebook buy offer. IN Business News. Manila Bulletin.
Chicago-viite (17. p.)Frier, Sarah, ja Brian Womack. "Young App Makers Spurn 3-B Facebook Buy Offer. IN Business News." Manila Bulletin .
MLA-viite (9. p.)Frier, Sarah, ja Brian Womack. "Young App Makers Spurn 3-B Facebook Buy Offer. IN Business News." Manila Bulletin, .
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