SHOLIKHAH, Nur; SUBEKTI, Hasan. Validity of Student Worksheet based on Creative Problem Solving Model to Improve Science Process Skill. JOELI: Journal of Educational and Learning Innovation, [S. l.], v. 1, n. 3, p. 213–221, 2025. DOI: 10.72204/0pzxrn34. Disponível em: https://journal.zamronedu.co.id/index.php/joeli/article/view/111.. Acesso em: 19 sep. 2025.