FOR ELEMENTARY AND SECONDARY SCHOOLS, PERSONNEL IN-CHARGE OF PAYROLL SYSTEM & SDO-LIAISON OFFICER: GSIS AND SDO – MANDALUYONG PERSONNEL MEETING Posted on November 12, 2019 by DepEd Mandaluyong Leave a comment 19-11-54. GSIS AND SDO – MANDALUYONG PERSONNEL MEETING Memorandum Unnumbered