Moin AMENA. Researching the Use of Problem-based Learning (PBL) Approach in English for Business Courses: The Case of Sultan Qaboos University. Research Highlights in Language, Literature and Education Vol. 2, [S. l.], p. 61–76, 2022. DOI: 10.9734/bpi/rhlle/v2/4427A. Disponível em: https://stm.bookpi.org/RHLLE-V2/article/view/8934. Acesso em: 9 jun. 2026.