id	keyword
ajiss-1980	countries
ajiss-1980	trade
ajiss-1980	oic
ajiss-1980	islamic
ajiss-1980	economic
ajiss-1980	market
ajiss-1980	oic countries
ajiss-1980	cooperation
ajiss-1980	block
ajiss-1980	non
ajiss-1980	integration
ajiss-1980	world
ajiss-1980	members
ajiss-1980	gravity
ajiss-1980	distance
ajiss-1980	model
ajiss-1980	income
ajiss-1980	intra
ajiss-1980	journal