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
PRECALCULUS ALGEBRA TRIGONOMETRY AND GEOMETRY
ROY H.MCLEOD1981 年出版352 页ISBN:0023794402