Tanjung HE. Pengaruh Model Pembelajaran PBL (Problem Based Learning) terhadap Kemampuan Berpikir Tingkat Tinggi Siswa (Higher Order Thinking) di MAN Karo, Kabanjahe, Provinsi Sumatera Utara. jiip [Internet]. 2023Nov.4 [cited 2025Jul.6];6(11):9350-6. Available from: https://jiip.stkipyapisdompu.ac.id/jiip/index.php/JIIP/article/view/2618