PRATITA, D.; BARLIAN, I.; RUSMIN, R. Development of Student Worksheet on Materials Economy Based Problem Solving. Humaniora, [S. l.], v. 9, n. 2, p. 211-220, 2018. DOI: 10.21512/humaniora.v9i2.4562. Disponível em: https://journal.binus.ac.id/index.php/Humaniora/article/view/4562. Acesso em: 22 feb. 2025.