MARSIDI; DAFIK; SUSANTO; KRISTIANA , Arika Indah. The Development of RBL-STEM Learning Materials to improve Students’ Combinatorial Thinking Skills in Solving DNA Protection Problems. International Journal of Instruction, [S. l.], v. 18, n. 3, p. 409–434, 2025. Disponível em: https://e-iji.net/ats/index.php/pub/article/view/783. Acesso em: 3 jul. 2025.