TURBAN EFRAIM. (1990). DECISION SUPPORT AND EXPORT SYSTEM (2.). MAXWELL MACMILLAN PUBLICATION LTD.
Lua i Stíl Chicago (17ú heag.)TURBAN EFRAIM. DECISION SUPPORT AND EXPORT SYSTEM. 2. LONDON: MAXWELL MACMILLAN PUBLICATION LTD, 1990.
Lua MLA (9ú heag.)TURBAN EFRAIM. DECISION SUPPORT AND EXPORT SYSTEM. 2. MAXWELL MACMILLAN PUBLICATION LTD, 1990.
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