hassouna, w. a. (1970). basic economic concepts for health planners. the institute of national planning.
Chicago-referens (17:e uppl.)hassouna, w. a. Basic Economic Concepts for Health Planners. cairo: the institute of national planning, 1970.
MLA-referens (9:e uppl.)hassouna, w. a. Basic Economic Concepts for Health Planners. the institute of national planning, 1970.