E. . Bernante, G. . Cosidon, J. D. . Delos Reyes, W. . Lugdat, J. P. . Valcoba, and R. D. . Mosqueda, Ph.D., FRICrim, “The Effectiveness of Metal Detectors Installation in LRT and MRT Stations; Government Response to Safety and Security”, AASgBCPJMRA, vol. 1, no. 1, Apr. 2019.