zoom-out Zoom Out zoom-in Zoom In invert Invert cursor Bigger Cursor brightness Brightness contrast Contrast monochrome Grayscale revert Undo Changes تطوير المناهج Research Date Sat, 01/01/2011 - 12:00 Research Department Curriculum and Teaching Methods Research Journal هابي رايت Research Member Abd-El Karim Mohamed Shazly Research Year 2011