Gaffud, R. B., & Serra, A. M. (1990). The emergence of an associative economy of the poor: Philippine cooperatives in focus. Southeast Asian Forum for Development Alternatives.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGaffud, Romualdo B., और Angela Mia Serra. The Emergence of an Associative Economy of the Poor: Philippine Cooperatives in Focus. Jakarta: Southeast Asian Forum for Development Alternatives, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGaffud, Romualdo B., और Angela Mia Serra. The Emergence of an Associative Economy of the Poor: Philippine Cooperatives in Focus. Southeast Asian Forum for Development Alternatives, 1990.
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