Herman Herman, Sudarmo Sudarmo, Suardi Suardi, Loso Judijanto, Endang Fatmawati, Isry Laila Syathroh, Nanda Saputra, Cristina Geovani Manik. Students’ Perceptions of Code-Switching in English As a Foreign Language Classrooms: A Qualitative Study of Internal and External Influencing Factors. IJSE 2026, 41, 474-491.