http://www.ziddu.com/download/17116665/pokokpembahasan.txt.html
http://www.ziddu.com/download/17116757/MATERII_Pendahuluan.pdf.html
http://www.ziddu.com/download/17116756/Materi2.PUPUK0RGANIK.pdf.html
http://www.ziddu.com/download/17116844/PupukAnorganik.docx.html
http://www.ziddu.com/download/17116948/Materi6.PUPUKHAYATIBIOFERTILIZER.pdf.html
http://www.ziddu.com/download/17117078/Materi9.PUPUKHIJAU.pdf.html
slamat BLAJAR FREN . . . . ..!!!
cip'ss . . ^_^
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