Affine maps, euclidean motions and quadrics di 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 di Bardi, Jason Socrates

Painless math geometry di Benes, Salita C.

Foundations of plane geometry. di Blau, Harvey I.

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

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

A new approach to plane geometry di Van Denover, Alice

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

Geometry in a modern setting. di Choquet, Gustave

Plane coordinate geometry di School Mathematics Study Group