Abdul Rahman, M. H.; Eh Phon, D. N.; Utama, N. I.; Yahaya, N.; Abd Halim, N. D.; Kasim, S. Sense of Presence and Learning Satisfaction Among Students of Different Age Groups in a 3-D Virtual World. Int. J. Adv. Sci. Eng. Inf. Technol. 2019, 9, 711-716.