ACUÑA, Andresito E.. Rejoinder to "A Critique of Professor Acuña's Philosophical Investigation of Two-Valued Deductive Logic". Philippine Social Sciences Review, [S.l.], may 2009. ISSN 2672-3158. Available at: <https://www.journals.upd.edu.ph/index.php/pssr/article/view/1285>. Date accessed: 11 aug. 2025.