id	keyword
ajoaa-1530	contract
ajoaa-1530	farming
ajoaa-1530	contract farming
ajoaa-1530	farmers
ajoaa-1530	tomato
ajoaa-1530	participation
ajoaa-1530	level
ajoaa-1530	effect
ajoaa-1530	income
ajoaa-1530	tomato contract
ajoaa-1530	journal
ajoaa-1530	development
ajoaa-1530	model
ajoaa-1530	matching