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

Security guards as force multipliers por Mariano, Manuel Jr

Security operations management por McCrie, Robert D.

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

Security consulting por Sennewald, Charles A. 1931-

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

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

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

Effective security management por Sennewald, Charles A. 1931-

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