Dewi, Shoufi Nisma, and Mutia Nasution. “The Effect of Problem-Posing Learning Method on the Vocabulary Mastery of Fourth Semester Students of South Tapanuli Muhammadiyah University”. Jurnal Pendidikan Tambusai, vol. 8, no. 2, May 2024, doi:10.31004/jptam.v8i2.15048.