Partasiwi, N. “PENGARUH MODEL PROBLEM BASED LEARNING (PBL) TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMA GAJAH MADA BANDAR LAMPUNG”. Lentera: Jurnal Ilmiah Kependidikan, vol. 12, no. 1, Mar. 2022, pp. 75-84, https://jurnal.stkippgribl.ac.id/index.php/lentera/article/view/452.