Chua, G. S. (1998). Problem employees. IN Beyond bottom lines [column]. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Chua, George S. "Problem Employees. IN Beyond Bottom Lines [column]." Philippine Star 1998.
Lua MLA (9ú heag.)Chua, George S. "Problem Employees. IN Beyond Bottom Lines [column]." Philippine Star, 1998.
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