Delis Meta Tiana, Aprillia, Rizky Frihatmawati, Rahmi Aulia Nurdini, and Rina Lestari, “The Impact of AI Chatbots as Digital Speaking Partners on EFL Learners’ Speaking Proficiency: A Quantitative Study”, interactionjournal, vol. 13, no. 2, pp. 557–574, Jun. 2026.