SIALLAGAN, Frengky; TAMBUNAN, Lois Oinike; SIDABUTAR, Ropinus. Pengembangan Instrumen Soal Higher Order Thinking Skill (HOTS) Pada Materi Bilangan Kelas VII SMP Negeri 2 Siantar. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 6, p. 8990–9004, 2023. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/7512. Acesso em: 18 jun. 2026.