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

Security guards as force multipliers حسب Mariano, Manuel Jr

Security operations management حسب McCrie, Robert D.

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

Security consulting حسب Sennewald, Charles A. 1931-

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

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

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

Effective security management حسب Sennewald, Charles A. 1931-

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