Santos, J. B. ., O. . Brines, J. F. . Celis, J. M. . Neo, M. . Candelario, and R. . Bangalisan. “Vertichute As Alternative Emergency Exit in Residential Building”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, vol. 2, no. 1, Apr. 2020, https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1791.