“The Implementation of Problem-Based Learning to Improve Seventh-Grade Students’ Descriptive Text Writing Skill”. Jurnal Multidisiplin Ilmu Sosial, Sains, dan Teknologi 2, no. 1 (June 6, 2026): 34–37. Accessed September 10, 2026. https://orbisdoctrinae.org/orbis-doctrinae/article/view/9.