INTERROGATIVE SENTENCE ERROR OF PRAJA IPDN WEST KALIMANTAN CAMPUS IN CONVERSATION . Jurnal Ilmiah Spectral, [S. l.], v. 3, n. 2, p. 012–022, 2017. Disponível em: https://journal.stbapontianak.ac.id/index.php/spectral/article/view/18. Acesso em: 6 feb. 2026.