ZAFRANY, A. E. (1993). Techniques Of The The Boundary Element Method Ali El Zahfrany. Ellis Horword.
Lua i Stíl Chicago (17ú heag.)ZAFRANY, ALI EL. Techniques Of The The Boundary Element Method Ali El Zahfrany. Ellis Horword, 1993.
Lua MLA (8ú heag.)ZAFRANY, ALI EL. Techniques Of The The Boundary Element Method Ali El Zahfrany. Ellis Horword, 1993.
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