Posamentier, A. S. (1986). Teaching secondary school mathematies: Techniques and enrichment units (2nd ed.). Merrill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPosamentier, Alfred S. Teaching Secondary School Mathematies: Techniques and Enrichment Units. 2nd ed. Columbus: Merrill, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPosamentier, Alfred S. Teaching Secondary School Mathematies: Techniques and Enrichment Units. 2nd ed. Merrill, 1986.
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