DM NO. 1905, S. 2025. MANDALUYONG ASSOCIATION OF SCHOOL HEADS (MASH) PRINCIPALS’ LEARNING ACTION CELL (PLAC) Posted on December 5, 2025 by Leave a comment DM NO. 1905, S. 2025. MANDALUYONG ASSOCIATION OF SCHOOL HEADS (MASH) PRINCIPALS’ LEARNING ACTION CELL (PLAC) Memorandum Numbered