صالح ر. علاقة المنطق بالرياضيات عند رسل ـ " حساب الفئات " نموذجاً ـ. Tishreen University Journal- Arts and Humanities Sciences Series, [S. l.], v. 27, n. 1, 2018. Disponível em: https://journal.tishreen.edu.sy/index.php/humlitr/article/view/5617. Acesso em: 22 jul. 2024.