The institute of national planning, Elrayes, a., & Nosseir, a. (2010). Using pepa to model the unemployment problem. The institute of national planning.
Čikaški stil citiranja (17. izdanje)The institute of national planning, amani Elrayes, i ann Nosseir. Using Pepa to Model the Unemployment Problem. cairo: The institute of national planning, 2010.
MLA način citiranja (9. izdanje)The institute of national planning, et al. Using Pepa to Model the Unemployment Problem. The institute of national planning, 2010.
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