الجزء الاول
http://www.reefnet.gov.sy/reef/images/stories/audio/lectures/oldhistory/lecture18.zip
وسائل الإيضاح
http://www.reefnet.gov.sy/reef/images/stories/oldhistory/21.jpg
http://www.reefnet.gov.sy/reef/images/stories/oldhistory/22.jpg
http://www.reefnet.gov.sy/reef/images/stories/oldhistory/23.jpg
http://www.reefnet.gov.sy/reef/images/stories/oldhistory/28.jpg
http://www.reefnet.gov.sy/reef/images/stories/oldhistory/29.jpg
الجزء الثاني
http://www.reefnet.gov.sy/reef/images/stories/audio/lectures/oldhistory/lecture19.zip