Lewis, Osama Safwat Basic principles of teaching methodolgy [[Book] /] Osama Safwa Lewis. - 1st.ed. - cairo : October 6 unversity, 2008. - 74p : ill ; 28cm. All age. Subjects--Topical Terms: Physical Therapy. Dewey Class. No.: 615.82 National Library of Medicine Call No.: 615.82 / LB