Yan, G. (2014). WWF disputes FEF figures on solar projects. AmCham Philippines Business Journal.
Chicago-viite (17. p.)Yan, Gregg. "WWF Disputes FEF Figures on Solar Projects." AmCham Philippines Business Journal 2014.
MLA-viite (9. p.)Yan, Gregg. "WWF Disputes FEF Figures on Solar Projects." AmCham Philippines Business Journal, 2014.
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