共 114 条
[1]
ACHARYYA JOYSRI, 2009, Journal of Economic Development, V34, P43
[3]
Ajide B., 2010, ENV RES J, V4, P291, DOI [10.3923/erj.2010.291.297, DOI 10.3923/ERJ.2010.291.297]
[6]
Aliyu M., 2005, 8 ANN C GLOBAL EC AN
[7]
[Anonymous], WORLD INV PROSP SURV
[8]
[Anonymous], 1990, CLIM CHANG IPCC RESP
[9]
[Anonymous], 1991, W3914 NAT BUR EC RES
[10]
[Anonymous], 2004, ENCY ENERGY