Sattar, M. A. (1994). A Text Book of Trigonometry. Modern Book Centre.
Tohutoru Kātū Chicago (17th ed.)Sattar, M. A. A Text Book of Trigonometry. Dhaka: Modern Book Centre, 1994.
Tohutoro MLA (9th ed.)Sattar, M. A. A Text Book of Trigonometry. Modern Book Centre, 1994.
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