Sukwara Akfan, S. Optimizing English for Mechanical Engineering through Problem-Based Learning for Students of Mechanical Maintenance and Repair Engineering Study Program Fakfak State Polytechnic: Optimalisasi Pembelajaran Bahasa Inggris 2 (English for Mechanical Engineering) Untuk Mahasiswa Program Studi Teknik Perawatan Dan Perbaikan Mesin Politeknik Negeri Fakfak. JIPKAM 2025, 3, 51-61.