Copi, Irving M.
Introduction to logic
Macmillan, 1961
 Buku Teks
Perspectives on scientific argumentation: theory, practice and research
Myint Swe Khine
Springer, 2012
 eBooks
An introduction to social research / Edited by John T. Doby
edited by John T. Doby
Irvington, 1967
 Buku Teks SO
Hurley, Patrick J., 1883-1963
A concise introduction to logic
Wardsworth Cengage Learning, 2012
 Buku Teks
Hurley, Patrick J., 1883-1963
A concise introduction to logic
Wadsworth and Cengage Learning, 2012
 Buku Teks