[1]
I. D. Rahadianto, R. Sumarlin, and M. Mario, “Analysis of Merrill’s first principles of instruction in the educational VR game ’Titans of Space’ with a formal element approach”, JPP, vol. 23, no. 3, pp. 251–277, Dec. 2023, doi: 10.17509/jpp.v23i3.62676.