Logic as a tool a guide to formal logical reasoning מאת Goranko, Valentin

Modal logic for philosophers מאת Garson, James W. 1943-

Elements of logic an integrative approach מאת Maboloc, Christopher Ryan B., Pascua, Edgar B. II

Teaching and learning logic (critical thinking) מאת Joven, Jose R.

Logic demystified מאת Boutelle, Anthony

Selected chpaters for the power of logic מאת Howard-Snyder, Frances

Logic towards critical thinking and reasoning מאת Ardales, Venancio B.

Logic towards critical thinking and reasoning מאת Ardales, Venancio B.

How to think logically מאת Seay, Gary, Nuccetelli, Susana

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Introduction to logic מאת Copi, Irving M.