باور بوينت شرح الظل

https://mega.nz/#!S5V2xT6T!rRZ02aqBsoXkYXxYidlccRlfiNdPKKpH-Y4P7D3Rxk8 Power point

https://mega.nz/#!i8N0AQZK!Ja3if2rolwXpR8zduyjT_kvRioMe9MrBMasfdolTyAg PDF