Tambak, Syahraini, and Rahmayani Siregar. “Development of Higher Order Thinking Skills Through Project-Based Learning Methods: Pengembangan Keterampilan Berpikir Tingkat Tinggi Melalui Metode Pembelajaran Berbasis Proyek”. Halaqa: Islamic Education Journal 7, no. 1 (June 11, 2023): 45–56. Accessed August 17, 2025. https://halaqa.umsida.ac.id/index.php/halaqa/article/view/1623.