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शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAndhra Pradesh Dept.of School Education. SCERT: Structure, Functions & Achievements 2000-2001. SCERT, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAndhra Pradesh Dept.of School Education. SCERT: Structure, Functions & Achievements 2000-2001. SCERT, 2001.
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