Bangladesh Bureau of statistics. (1991). Report of the survey on test relief 1989. Bangladesh Bureau of Statistics.
Tohutoru Kātū Chicago (17th ed.)Bangladesh Bureau of statistics. Report of the Survey on Test Relief 1989. Dhaka: Bangladesh Bureau of Statistics, 1991.
Tohutoro MLA (9th ed.)Bangladesh Bureau of statistics. Report of the Survey on Test Relief 1989. Bangladesh Bureau of Statistics, 1991.
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