Doqilla, Daniel V. Training and licensing of private security guards conducted by La Union of college of nursing arts and sciences training school / Daniel V. Doqilla. - City of San Fernando, La Union : [s.n.], 2017. - xii, 63 pages : illustration ; 28 centimeter. Bibliography: pages 49-50. Subjects--Topical Terms: Security services. Dewey Class. No.: TH 363.289 D72t 2017