Goucher_Mathematical Olympiad Dark Arts

Hall , Knight_Elementary Algebra for Schools (1885)

Gross_Algebraic Number Theory

Coquand, Lombardi_A Logical Approach to Abstract Algebra

Szendroi_Polynomial Rings and Galois Theory

Propp_Real Analysis in Reverse

Payne_Trigonometric Identities and Inequalities. a Preview of Fourier Analysis

Hall, Knight_Higher Algebra, A Sequel to Elementary Algebra for Schools (1942)

Neunhauserer_12^2 Beautiful Mathematical Theorems With Short Proofs

Parvardi, Ben_1220 Number Theory Problems - Third Edition