hassouna, w. a. (1970). basic economic concepts for health planners. the institute of national planning.
Čikaški stil citiranja (17. izdanje)hassouna, w. a. Basic Economic Concepts for Health Planners. cairo: the institute of national planning, 1970.
MLA način citiranja (9. izdanje)hassouna, w. a. Basic Economic Concepts for Health Planners. the institute of national planning, 1970.
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