Fernando, Dito, Adnan Hidayat Purnama, Luqdina Aprilia Hapsari, and Lusia B. Rebon. “Implementation of Portfolio Instruments in Measuring Critical Thinking Ability of Class X IPS 1 MAN 1 Bantul in History Subject”. Jurnal Ilmiah Kanderang Tingang 14, no. 2 (July 13, 2023): 312-321. Accessed August 24, 2025. https://chem-upr.education/ojs/index.php/JIKT/article/view/237.