I. Sa’diyah, A. Ahmadi, A. T. Damaliana, A. R. M. Putri, and D. P. P. Febryanti, “Improving Students’ Speaking Skills in Indonesian Language Courses through Triangulation of Learning Methods (Project Based Learning, Outcome Based Education, and Role Playing) with the Webinar Series Model”, Nusantara Sci. Tech. Proc., vol. 2024, no. 47, pp. 176–187, May 2025, doi: 10.11594/nstp.2025.428.