Penggayaan APA
AKPAN, Usenobong F, ABANG, Dominic E. (2015).
Environmental quality and economic growth : .
Korea:
Hanyang Economic Research Institute.
Chicago Style
AKPAN, Usenobong F, ABANG, Dominic E.
Environmental quality and economic growth :.
Korea:
Hanyang Economic Research Institute,
2015.
Artikel.
MLA Style
AKPAN, Usenobong F, ABANG, Dominic E.
Environmental quality and economic growth :.
Korea:
Hanyang Economic Research Institute,
2015.
Artikel.
Turabian Style
AKPAN, Usenobong F, ABANG, Dominic E.
Environmental quality and economic growth :.
Korea:
Hanyang Economic Research Institute,
2015.
Artikel.