COLLEGE TRIGONOMETRY SECOND EDITION
STANLEY I.GROSSMAN1992 年出版416 页ISBN:0030521696
PLANE AND SPHERICAL TRIGONOMETRY
ELMER A.LYMAN AND EDWIN C.GODDARD1900 年出版208 页ISBN:
COLLEGE TRIGONOMETRY THIRD EDITION
RICHARD N.AUFMANN VERNON C.BARKER RICHARD D.NATION1997 年出版404 页ISBN:0395786452
TRIGONOMETRY:A GRAPHING APPROACH
ROLAND E.LARSON ROBERT P.HOSTETLER BRUCE H.EDWARDS DAVID E.HEYD1989 年出版498 页ISBN:0669282961