saied Hawary, N. F. E., P. D. S. I. Sharkawy, A. P. M. O. E. S. Fouda, and T. D. M. H. Ishak, Teaching practical Harmony by Using Harmonics of Pentatonic Composition for Piano by Bartok, , Giza, Cairo University, 2014. neven_fathy_master_arabic.pdfneven_fathy_master_english.pdf