Sri Lanka. Ministry of Census and Statistics. Ministry of Plan Implementation. (1988). Sri Lanka demographic and health survey, 1987. Institute for Resource Development.
Chicago-viite (17. p.)Sri Lanka. Ministry of Census and Statistics. Ministry of Plan Implementation. Sri Lanka Demographic and Health Survey, 1987. Maryland: Institute for Resource Development, 1988.
MLA-viite (9. p.)Sri Lanka. Ministry of Census and Statistics. Ministry of Plan Implementation. Sri Lanka Demographic and Health Survey, 1987. Institute for Resource Development, 1988.
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