http://repository.uhamka.ac.id/id/eprint/14929/ Pengaruh Sudut Konsentrator Terhadap Kinerja Turbin Angin Savonius Tipe U Prianto, Ryan Aditya http://repository.uhamka.ac.id/id/eprint/14929/1/digital_8059-eSTM-2019008%20%20Ryan%20Aditya%20Prianto.pdf Unduh!