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Gaya APA
Sembodo, D, R.(2010).Gulma dan Pengelolaannya .Yogyakarta:Yogyakarta:Graha Ilmu.
Gaya MLA
Sembodo, Dad, R.J."Gulma dan Pengelolaannya".Yogyakarta:Yogyakarta:Graha Ilmu,2010.Text.