Komang Indah Sari, Hastini, Moh. Riswanto. Improving Students’ Vocabulary through Problem-Based Learning Strategy in Topic of Analytical Exposition Text (A Classroom Action Research at XI Grade of SMA Negeri 3 Palu). JUPERAN [Internet]. 16 Oktober 2025 [dikutip 15 November 2025];4(02):1587-95. Tersedia pada: https://ojs.smkmerahputih.com/index.php/juperan/article/view/1391