Vol. 5 No. 4 (2016)

Articles

• Biogas Technology in South Africa, Problems, Challenges and Solutions

  Patrick Mukumba, Golden Makaka, Sampson Mamphweli

  58-69

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• Net-Zero Energy Building – Case Study Al Khobar City, Saudi Arabia

  Nader A Nader, Rami S Alsayed

  70-78

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