1.
Rahadianto ID, Sumarlin R, Mario M. Analysis of Merrill’s first principles of instruction in the educational VR game ’Titans of Space’ with a formal element approach. JPP [Internet]. 2023 Dec. 15 [cited 2026 Aug. 1];23(3):251-77. Available from: https://ejournal-dppm.upi.edu/jpp/article/view/661