General orders for security personnel a guide to maintaining discipline and professionalism av Valenzuela, Melvyn C.C

Security guards as force multipliers av Mariano, Manuel Jr

Security operations management av McCrie, Robert D.

The art and science of security practical security applications for team leaders and managers av Supan, Joel Jesus M.

Security consulting av Sennewald, Charles A. 1931-

Introduction to security operations and management av Ortmeier, P. J.

Private security and the law av Nemeth, Charles P. 1951-

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The art and science of security practical security applications for team leaders and managers av Supan, Joel Jesus M.

Effective security management av Sennewald, Charles A. 1931-

Mga guwardiya ng Bolinao, patuloy na nananawagan av Castillo, Abigail C.