WICAKSONO, AGUNG. SOURCES OF GRAMMATICAL ERROR: A CASE STUDY ON INTRALINGUAL, INTERLINGUAL, CONTEXT OF LEARNING AND COMMUNICATION STRATEGIES FACTORS. Nusantara of Research : Jurnal Hasil-hasil Penelitian Universitas Nusantara PGRI Kediri, Indonesia, INA, v. 1, n. 2, 2014. DOI: 10.29407/nor.v1i2.55. Disponível em: https://ojs.unpkediri.ac.id/index.php/efektor/article/view/55. Acesso em: 8 jun. 2025.