id	keyword
easat-1509	education
easat-1509	quality
easat-1509	approach
easat-1509	quality education
easat-1509	learning
easat-1509	definition
easat-1509	authors
easat-1509	model
easat-1509	teaching
easat-1509	means
easat-1509	system
easat-1509	development