by Olwi, Ibrahim A., Khalifa, Adel M.A.
Published in Solar energy (1988)

by Khalifa, Adel M.A., Taha, M.M.A., Akyurt, M.
Published in Solar energy (1987)

by Khalifa, Adel M.A., Taha, M.M.A., Akyurt, M.
Published in Solar & wind technology (1984)

by Khalifa, Adel M.A., Taha, M.M.A., Akyurt, M.
Published in Solar & wind technology (1984)

by Khalifa, Adel M.A., Taha, M.M., Akyurt, M.
Published in Solar & wind technology (1986)