MANDEY, A. F.; TILAAR, A. L. F.; TUMALUN, N. K. The effectiveness of creative problem-solving learning models on students’ ability to solve HOTS questions at SMP Negeri 2 Langowan class VIII. Math Didactic: Jurnal Pendidikan Matematika, v. 9, n. 3, p. 541-551, 17 Jan 2024.