nih , ada file gratis gan
versi pdf
versi pdf
http://www.ziddu.com/download/12468701/UU-23-1997-lingkunganhidup.pdf.html
versi power point
http://www.ziddu.com/download/12468703/undang-undang%20lingkungan%20hidup.ppt.html
Saturday 22 January 2011
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