Situmorang E. The Influence of Vocabulary Mastery Ability to Write Exposition Text of Eighth Grade Students of SMP Negeri 1 Satu Atap Tampahan: The Influence of Vocabulary Mastery Ability to Write Exposition Text of Eighth Grade Students of SMP Negeri 1 Satu Atap Tampahan. Mantik [Internet]. 2020Feb.13 [cited 2026May6];3(4):579-81. Available from: https://iocscience.org/ejournal/index.php/mantik/article/view/631