Dewi FU, Setyaji A, Mulyani. 94. The Implementation of Vocabulary Mastery by Using Cambridge Online Dictionary to Enhance Students’ Speaking Skill in Hortatory Exposition Text. psnppg [Internet]. 2023 Jul. 3 [cited 2025 Dec. 5];1(1):860-7. Available from: https://conference.upgris.ac.id/index.php/psnppg/article/view/4032