Institute of Labor and Manpower Studies & Philippines. (1981). Labor code of the Philippines with amendments: Presidential decree no. 442 as amended. Institute of Labor and Manpower Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInstitute of Labor and Manpower Studies और Philippines. Labor Code of the Philippines with Amendments: Presidential Decree No. 442 as Amended. [Manila]: Institute of Labor and Manpower Studies, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInstitute of Labor and Manpower Studies और Philippines. Labor Code of the Philippines with Amendments: Presidential Decree No. 442 as Amended. Institute of Labor and Manpower Studies, 1981.
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