RAHADIANTO, Irfan Dwi; SUMARLIN, Rully; MARIO, Mario. Analysis of Merrill’s first principles of instruction in the educational VR game ’Titans of Space’ with a formal element approach. Jurnal Penelitian Pendidikan, [S. l.], v. 23, n. 3, p. 251–277, 2023. DOI: 10.17509/jpp.v23i3.62676. Disponível em: https://ejournal-dppm.upi.edu/jpp/article/view/661. Acesso em: 1 aug. 2026.