Zulvia Misykah, Putri Sari Ulfa Sembiring, Dewi Sartika Panggabean, and Fira Yunia. 2023. “THE INFLUENCE OF PROBLEM- BASED LEARNING MODELS AND SELF-CONCEPT ON HIGHER ORDER THINKING ABILITIES (HOTS)”. Jurnal Scientia 12 (04), 334-37. https://infor.seaninstitute.org/index.php/pendidikan/article/view/2972.