“Analyzing the Use of Fillers in Postgraduate EFL Learners’ Academic Presentations: A Qualitative Case Study Approach”. Biormatika : Jurnal Ilmiah Fakultas Keguruan Dan Ilmu Pendidikan, vol. 12, no. 1, Feb. 2026, pp. 47-55, https://doi.org/10.35569/v12i1.2518.