Indicators of English Proficiency: A Structural-Semiotic Analysis of Self-Presentation in 'English with Lucy' and Its Educational Implications - Tatan Tawami; Eddy Soeryanto Soegoto; Retno Purwani Sari; Thomas Chochole; Chepi Nur Albar; Senny Luckyardi (International Journal of Language Education, 2026)