4Prahhu NS. Second language pedagogy[M]. UK: Oxford University Press,1987:1 - 114.
5Michael HL. Three approaches to task - based syllabus design[J]. Tesol Quarterly, 1992,26 (1) : 27 - 56.
6Hasan O. Berna degirmenci, berna musal, oya itil, elif akalin, oguz kilinc, sebnern ozkan&emin alici[J]. Education for Health, 2006, 19(1) :32 -42.
7Samim AA,Samim AA, Waleed GA. Evaluation of a task- based community oriented teaching model in family medicine for under graduate medical students in Iraq[J]. BMC Medical Education, 2005,5:31.