hassouna, w. a. (1970). basic economic concepts for health planners. the institute of national planning.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিhassouna, w. a. Basic Economic Concepts for Health Planners. cairo: the institute of national planning, 1970.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিhassouna, w. a. Basic Economic Concepts for Health Planners. the institute of national planning, 1970.