Sison, J. (2007). Filipino workers low in productivity. IN Opinion [column]. Malaya.
Chicago-viite (17. p.)Sison, Jesus. "Filipino Workers Low in Productivity. IN Opinion [column]." Malaya 2007.
MLA-viite (9. p.)Sison, Jesus. "Filipino Workers Low in Productivity. IN Opinion [column]." Malaya, 2007.
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