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„IBO strategic plan approved”(PDF). IB World. International Baccalaureate Organization. 40: 2. august 2004. Arhivat din original(PDF) la . Accesat în .
„IBO strategic plan approved”(PDF). IB World. International Baccalaureate Organization. 40: 2. august 2004. Arhivat din original(PDF) la . Accesat în .