Mubarak, Ibnu, et al. “Development of IMA-3D Based E-Learning on Vocational Education in the 4D (Define-Design-Development, and Disseminate) Instructional Design Model”. International Journal of Psychosocial Rehabilitation, vol. 24, no. 8, Oct. 2020, pp. 10680-93, https://doi.org/10.61841/w97t8y68.