Spiegel, M. R. (1990). Schaum's outline of theory and problems of statistics (2nd ed.). National Book Store.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpiegel, Murray R. Schaum's Outline of Theory and Problems of Statistics. 2nd ed. Manila: National Book Store, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSpiegel, Murray R. Schaum's Outline of Theory and Problems of Statistics. 2nd ed. National Book Store, 1990.
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