Orozco, W. (1997). Goethre-Institut's Dirk Angelroth wants to change Filipino perceptions of Germany. Manila Chronicle.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrozco, Wilhelmina. "Goethre-Institut's Dirk Angelroth Wants to Change Filipino Perceptions of Germany." Manila Chronicle 1997.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrozco, Wilhelmina. "Goethre-Institut's Dirk Angelroth Wants to Change Filipino Perceptions of Germany." Manila Chronicle, 1997.
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