Neo-Piagetian Theories of Cognitive Development: Implications ...
Andreas Demetriou & Anastasia Efklides & Dr Michael Shayer & Michael Shayer
A History of Mathematics
Florian Cajori
First Outline of a System of the Philosophy of Nature
Friedrich Wilhelm Joseph von Schelling
Hegel and Language
Jere O'Neill Surber
Scrum Basics
Ken Schwaber
Contact
Carl Sagan
Pale Blue Dot