Suarniati, Ni Wayan, I Wayan Ardhana, Nur Hidayah, and Dany M. Handarini. “The Difference Between the Effects of Problembased Learning Strategy and Conventional Strategy on Vocational School Students’ Critical Thinking Skills in Civic Education”. International Journal of Learning, Teaching and Educational Research 18, no. 8 (August 30, 2019): 155–167. Accessed July 27, 2026. http://www.ijlter.myres.net/index.php/ijlter/article/view/527.