De Guzman, P. E., & Robles, K. C. (2006). The role of contractual employment in the business firms and impact on the employees. University of the Philippines Diliman Extension Program in Pampanga.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Guzman, Priscilla E., और Kathyrine C. Robles. The Role of Contractual Employment in the Business Firms and Impact on the Employees. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDe Guzman, Priscilla E., और Kathyrine C. Robles. The Role of Contractual Employment in the Business Firms and Impact on the Employees. University of the Philippines Diliman Extension Program in Pampanga, 2006.
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