Donny Fahsani. “The Effectiveness of English Language Learning Programs at a Business School: Stakeholders’ Perspectives”. Khatulistiwa: Jurnal Pendidikan dan Sosial Humaniora 5, no. 2 (June 3, 2025): 701–714. Accessed June 8, 2025. https://researchhub.id/index.php/Khatulistiwa/article/view/6151.