MELVYN CECILIO VALENZUELA

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cover image of Breaking Chains

Breaking Chains

MELVYN C.C. VALENZUELA Author
(2023)

cover image of Advanced Physical Security and Asset Protection Techniques

Advanced Physical Security...

MELVYN C.C. VALENZUELA Author
(2023)

cover image of Self Defense Begins In the Mind

Self Defense Begins In the Mind

MELVYN CECILIO C. VALENZUELA Author
(2022)

cover image of The Kaizen Productivity Rocket

The Kaizen Productivity Rocket

MEL CASTLE Author
(2022)

cover image of The AI Advantage

The AI Advantage

MEL CASTLE Author
(2023)