De Vera, A. (2019). Shortage of construction workers traced to low pay, poor access to certification. Manila Bulletin.
Chicago Style (17. basım) AtıfDe Vera, Analou. "Shortage of Construction Workers Traced to Low Pay, Poor Access to Certification." Manila Bulletin 2019.
MLA (9th ed.) AtıfDe Vera, Analou. "Shortage of Construction Workers Traced to Low Pay, Poor Access to Certification." Manila Bulletin, 2019.
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