Where can i find a book or some advice about shawarma chicken or beef. i need a recipe for a restaurant?

I look over internet and it seems a little bit impossible to find a real Arabic recipe to prepare shawarma for a restaurant on the spin grill. please let me know if there any book which i can buy them online ..or any other material where i can learn more about it , or also someone who sell this recipes . any answer... show more I look over internet and it seems a little bit impossible to find a real Arabic recipe to prepare shawarma for a restaurant on the spin grill. please let me know if there any book which i can buy them online ..or any other material where i can learn more about it , or also someone who sell this recipes . any answer is welcome as long as is real :) thank you all
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