.ﻂﺸﻧ ﻮﻳﺪﻴﻓ ﻰﻠﻋ رﻮﺜﻌﻟا مﺪﻋ ﺔﻟﺎﺣ ﻲﻓ ﺐﻴﺗﺮﺘﻟا ﻲﻓ لوﻷا ﻮﻳﺪﻴﻔﻟا رﺪﺼﻣ ﻰﻟإ دﻮﻌﺗو ،ﺐﻴﺗﺮﺘﻟﺎﺑ
Off .1
On .2
Primary Source Recovery
وPrimary Source ﻮﻳﺪﻴﻔﻟا يرﺪﺼﻣّ ﺪﻳﺪﺤﺗ ﻲﻓ ﻂﺸﻨﻟا ﻮﻳﺪﻴﻔﻟا ﻦﻋ ﺚﺤﺒﻟا ﻢﺘﻳ ،On ﻊﺿﻮﻟا ﻰﻠﻋ Primary Source Recovery ﻂﺒﺿ ﺪﻨﻋ
.ﻂﻘﻓ Secondary Source
.Secondary Source ﺪﻳﺪﺤﺗ ﻢﺘﻳ ،ﻂﺸﻧ ﻮﻳﺪﻴﻓ ﻰﻠﻋ رﻮﺜﻌﻟا مﺪﻋ ﺔﻟﺎﺣ ﻲﻓ ﺎﻣأ .ﻂﺸﻧ ﻮﻳﺪﻴﻓ ﻰﻠﻋ رﻮﺜﻌﻟا ﺔﻟﺎﺣ ﻲﻓ Primary Source ﺪﻳﺪﺤﺗ ﻢﺘﻳو
."لﺎﺧدإ ةرﺎﺷإ ﺪﺟﻮﺗ ﻻ" ﺔﻟﺎﺳﺮﻟا ﺮﻬﻈﺗ ،Secondary Source ﻲﻓ ىﺮﺧأ ةﺮﻣ ﻂﺸﻧ ﻮﻳﺪﻴﻓ ﻰﻠﻋ رﻮﺜﻌﻟا مﺪﻋ ﺔﻟﺎﺣ ﻲﻓو
Off .1
On .2
Primary Source
.ﻲﺋﺎﻘﻠﺘﻟا لﺎﺧدﻹا رﺪﺼﻤﻟ Primary Source دﺪﺣ
Secondary Source
.ﻲﺋﺎﻘﻠﺘﻟا لﺎﺧدﻹا رﺪﺼﻤﻟ Secondary Source دﺪﺣ