Affine maps, euclidean motions and quadrics av Reventós i Tarrida, Agustí

Available for UP System via Springer Link.

The fifth postulate how unraveling a two-thousand-year-old mystery unraveled the universe av Bardi, Jason Socrates

Painless math geometry av Benes, Salita C.

Foundations of plane geometry. av Blau, Harvey I.

Barron's geometry the easy way av Leff, Lawrence S.

Euclidean and non-Euclidean geometry an analytic approach av Ryan, Patrick J.

A new approach to plane geometry av Van Denover, Alice

Congruence in algebra and geometry a study on their meanings av Blankas, Angelita Buted 1949-

Geometry in a modern setting. av Choquet, Gustave

Plane coordinate geometry av School Mathematics Study Group