بشار حسين ر. Using Hidden Markov Chains in Recognition of Vowel Letters in English Language. IRAQI JOURNAL OF STATISTICAL SCIENCES, [S. l.], v. 6, n. 1, p. 67–91, 2006. DOI: 10.33899/iqjoss.2006.032725. Disponível em: https://edusj.uomosul.edu.iq/index.php/stats/article/view/29282. Acesso em: 10 sep. 2025.