., Fianti, Ma’rifatul Illa, Ellianawati ., and Bambang Subali. “Development of Structured Essay Questions to Measure the Student Higher-Order Thinking Skills at Senior High School 2 Purworejo”. KnE Social Sciences 9, no. 8 (April 3, 2024): 725–732. Accessed February 6, 2025. http://thrillriftranks.com/index.php/KnE-Social/article/view/15638.