Oluwadoro Jacob Oludare, Sale Maikanti, Jurgen Martin Burkhardt, Yap Ngee Thai, Salina Binti Husain,. “Hausa Vowels and Pronunciation of Words Speakers Learning Hausa”. Opción 350 (December 13, 2019): 1464-1478. Accessed December 6, 2025. https://produccioncientificaluz.org/index.php/opcion/article/view/30125.