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Reyes, R. C.; Reyes, J. P.; Martinez, M. C. O. WORK-RELATED PROBLEMS AND PERFORMANCE LEVEL OF SENIOR HIGH SCHOOL TEACHERS : Received: 22nd September 2021; Revised: 16th February 2022, 20th February 2022, 05th March 2022; Accepted: 14th March 2022. lijhls 2022, 8, 01-22.