Tham khảo Arak, Syria

Tài liệu tham khảo

WikiPedia: Arak, Syria http://www.swordofallah.com/html/bookchapter28page... https://books.google.com/?id=iwxeHaKUGFMC&pg=PA132... https://books.google.com/books?ei=4DDdT__kLYX48wTT... https://books.google.com/books?id=Ig0_4HeMh-AC&dq=... https://books.google.com/books?id=KvZ7K5KWbuoC&dq=... https://books.google.com/books?id=NdCTI5FqayAC&dq=... https://books.google.com/books?id=NdCTI5FqayAC&pg=... https://books.google.com/books?id=YJPn3-rRjC0C&dq=... https://www.theguardian.com/world/2015/may/20/isis... https://archive.is/20121220124749/http://www.cbssy...