Sumber Belajar Bareng


  1. 10 steps to zero waste, 20 infographics by Italian students, https://www.zerowasteeurope.eu/2017/05/10-steps-to-zero-waste-20-infographics-by-italian-students/
  2. Buku Petunjuk Praktis Membuat Pupuk Organik Granul, https://isroi.com/2009/04/12/buku-petunjuk-praktis-membuat-pupuk-organik-granul/
  3. Oh, Pantas Bersih, Begini Cara Orang Jepang Membuang Sampah, http://www.yesielsandra.com/2017/04/oh-pantas-bersih-begini-cara-orang.html

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