Puspitasari, A. W. (2011). The Influence of Perceived Stress and Culture Shock Among International Postgraduate Students' Academic Achievement in Universiti Utara Malaysia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPuspitasari, Ayu Widiati. The Influence of Perceived Stress and Culture Shock Among International Postgraduate Students' Academic Achievement in Universiti Utara Malaysia. 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPuspitasari, Ayu Widiati. The Influence of Perceived Stress and Culture Shock Among International Postgraduate Students' Academic Achievement in Universiti Utara Malaysia. 2011.
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