https://kunaifi.wordpress.com/2009/01/17/makin-banyak-universitas-membuka-program-studi-energi-terbarukan-more-degree-programs-in-renewable-energy/https://kunaifi.wordpress.com/2009/01/17/makin-banyak-universitas-membuka-program-studi-energi-terbarukan-more-degree-programs-in-renewable-energy/