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

Available for University of the Philippines Diliman via McGraw-Hill Access Engineering. Click here to access
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When zero left number land by Salvador, Maita Songco

Primes of the form p = xp2s + nyp2s Fermat, class field theory, and complex multiplication by Cox, David A.

Quadratic irrationals an introduction to classical number theory by Halter-Koch, Franz 1944-

Complex-valued neural networks advances and applications

Available for University of the Philippines Diliman via Wiley Online Library. Click here to access

Computational number theory and modern cryptography by Yan, Song Y.

Primes of the form x² + ny² fermat, class field theory, and complex multiplication by Cox, David A.

Number, shape, and symmetry an introduction to number theory, geometry, and group theory by Herrmann, Diane L. 1953-

Computation of square and cube roots of p-adic numbers via Newton-Raphson method by Ignacio, Paul Samuel P., Addawe, Joel M., Alangui, Wilfredo V., Nable, Job A.

On the square and cube roots of p-adic numbers by Ignacio, Paul Samuel P.