Samar, R. R. (1999). Microsoft philippines GM in BID watchlist. Manila Bulletin.
Chicagoスタイル(17版)引用形式Samar, Red R. "Microsoft Philippines GM in BID Watchlist." Manila Bulletin 1999.
MLA(9版)引用形式Samar, Red R. "Microsoft Philippines GM in BID Watchlist." Manila Bulletin, 1999.
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