Haryani H. PENINGKATAN KETERAMPILAN MENULIS PERSONAL LETTER MELALUI MODEL PROBLEM BASED LEARNING PADA SISWA KELAS XI SMKS PRIMA WISATA JAKARTA. JAPS [Internet]. 2024Aug.31 [cited 2026Mar.26];1(5):69-77. Available from: https://journal.sintesia.id/index.php/japs/article/view/53