DM NO. 957 S. 2022. ADDENDUM TO REGIONAL MEMORANDUM NO. 541, S. 2022 (MONITORING OF SCHOOL LIBRARIES AND LIBRARY HUBS) Posted on October 4, 2022 by DepEd Mandaluyong Leave a comment DM NO. 957 S. 2022. ADDENDUM TO REGIONAL MEMORANDUM NO. 541, S. 2022 (MONITORING OF SCHOOL LIBRARIES AND LIBRARY HUBS) Memorandum Numbered