Schaum's outline of trigonometry von Moyer, Robert, Ayres, Frank 1901-1994

Available for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access
Also available remotely for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access thru EZproxy

Schaum's outline of trigonometry von Moyer, Robert, Ayres, Frank 1901-1994

Available for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access
Also available remotely for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access thru EZproxy

Eigenvalues, embeddings and generalised trigonometric functions von Lang, Jan

Available for University of the Philippines Diliman via SpringerLink. Click here to access

Essentials of trigonometry. von Davis, E. Allan

Six-figure tables of trigonometric functions von Khrenov, L.S

Natural trigonometric functions to seven decimal places for every ten seconds of arc together with miscellaneous tables von Ives, Howard Chapin

Elementary functions for precalculus mathematics von Glenview, Ill. Phillips, Esther R. c1978, Rose, Israel H.