Muhamad Alfi Khoiruman, et al. “THE INFLUENCE OF MOTIVATION, LECTURER SUPPORT, AND LEARNING ENVIRONMENT ON ENGLISH PROFICIENCY THROUGH MARITIME TEXTBOOK MEDIATION”. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL, vol. 14, no. 4, Nov. 2025, pp. 2910-8, doi:10.36526/sosioedukasi.v14i4.6275.