Lawal, Abubakar, and Bishir Aliyu. “Acoustic Variations in Interdental Fricatives θ and ð Among Educated Hausa–English Bilinguals in Northwestern Nigeria”. Pan-African Journal of Research and Innovation in Arts, Humanities and Philosophy 1, no. 1-2 (September 23, 2026): 16–23. Accessed November 15, 2026. https://pajri.com/index.php/pajrijahp/article/view/55.