De Guzman, L. S. (1983). Fundamentals of social work. Schools of Social Work Association of the Philippines.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Guzman, Leonora Serafica. Fundamentals of Social Work. Manila: Schools of Social Work Association of the Philippines, 1983.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe Guzman, Leonora Serafica. Fundamentals of Social Work. Schools of Social Work Association of the Philippines, 1983.
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