Utilization of styrofoam as soundproofing material with auditory frequency range

Pemanfaatan limbah plastik (polystyrene) menjadi liquid oil dengan menggunakan metode pirolisis = Utilization of plastics waste (polystyrene) into liquid oil by using pyrolysis method

Pemanfaatan limbah minyak goreng dan nanopartikel ZnO sebagai bahan baku detergen ramah lingkungan = Utilization of waste cooking oil and ZnO nanoparticle as raw material for eco-friendly detergen

Konsep Keberlanjutan Pemanfaatan Limbah Fly ash Sebagai Alternatif Bahan Baku di Industri Semen = Sustainability Concept Of Fly Ash Waste Utilization As An Alternative Raw Material In Cement Industry

Pemanfaatan limbah mahkota nanas sebagai bahan baku pembuatan karbon aktif dalam teknologi adsorbed natural gas = Utilization of crown pineapple waste as raw material preparation of activated carbon to adsorbed natural gas technology