1. Reasoning: Studies of Human Inference and Its Foundations;Adler,2008
2. Logic Primer;Allen,2001
3. Entailment: Vol. 1;Anderson,1975
4. Natural Deduction: The Logical Basis of Axiom Systems;Anderson,1962
5. Establishing connections between Aristotle's natural deduction and first-order logic;Andrade;History and Philosophy of Logic,2008