Widyo Nugroho, Abiyyu Zharif Nugroho, and Septian Ade Nugroho. “Virtual Reality-Based Communication Media For Acrophobia Therapy”. ICHELSS: International Conference on Humanities, Education, Law, and Social Sciences, Vol. 1, no. 1, July 2021, pp. 251-8, http://103.8.12.212:33180/unj/index.php/hispisi/article/view/22177.