“The Use of Problem Based Learning (PBL) Method in Teaching English Writing at SMAN 5 Makassar”. Seltics Journal: Scope of English Language Teaching Literature and Linguistics 1, no. 1 (December 4, 2018): 1–9. Accessed August 23, 2025. http://ejournals.umma.ac.id/index.php/seltics/article/view/75.