PIKRI, Zainal. Wittgenstein’s Challenge: The Impossibility of a Private Language. Jaqfi: Jurnal Aqidah dan Filsafat Islam, [S. l.], v. 8, n. 2, p. 231–249, 2023. DOI: 10.15575/jaqfi.v8i2.17417. Disponível em: http://journal.uinsgd.ac.id/index.php/jaqfi/article/view/17417. Acesso em: 12 aug. 2026.