el tigi, a. e. d. (1964). determining investment priority ratings. the institute of national planning.
Lua i Stíl Chicago (17ú heag.)el tigi, aziz el din. Determining Investment Priority Ratings. cairo: the institute of national planning, 1964.
Lua MLA (9ú heag.)el tigi, aziz el din. Determining Investment Priority Ratings. the institute of national planning, 1964.
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