Rice, Bernard J.
Plane trigonometry
Prindle, Weber & Schmidt, 1975
 Buku Teks
Cameron, Edward A.
Brief trigonometry
Reynal & Hitchock, 1941
 Buku Teks
Brink, Raymond
Plane trigonometry / Raymond Brink
D. Appleton-Century Co., 1940
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Buchanan, Herbert E.
Plane trigonometry
Johnson Pub., 1926
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Corliss, John J.
Plane trigonometry / by John J. Corliss and Winifred V. Berglund
Houghton Miffiln, 1950
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