Saputra D, El Faisal E. Improving Critical Thinking Skills Through the Four Pillars of Nationality Extracurricular at SMA Negeri 1 Tanah Abang (PALI). JPK [Internet]. 2026 Jan. 28 [cited 2026 Apr. 24];11(SpecialIssue(1):108-12. Available from: http://journal.umpo.ac.id/index.php/JPK/article/view/13135