ALEXANDER, L. (1986). Question and answer graded oral comprehension exercises. Kanisius.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रALEXANDER, L.G. Question and Answer Graded Oral Comprehension Exercises. Kanisius, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रALEXANDER, L.G. Question and Answer Graded Oral Comprehension Exercises. Kanisius, 1986.
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