Daur ulang kertas bekas

Analysis of packaging recycle campaign towards brand attitude among beauty brands = Analisis kampanye daur ulang kemasan terhadap sikap merek di antara merek kecantikan

Analisis sistem ekonomi daur ulang kapal dengan menggunakan metode penjual jasa dan borongan = Analysis economic system of ship recycle using method as service seller and wholesale

Heavy metal characterization of waste portable rechargeable batteries used in mobile phones

Studi tentang integrasi pengolahan used bleaching earth cake dari proses daur ulang pelumas bekas = Study of integrated treatment of used bleaching earth cake from lubricant oil recycling process