The Monsters Know What They're Doing 2 (moar)     Dungeons And Dragons (no source link)
Angry Golem (web)     D&D 5e original/official source
Pathfinder 1e Bestiary 6     Pathfinder original/official source
All Sorts Of Critters (web)     Pathfinder original/official source
Monster Manual Expanded v2     D&D 5e original/official source
Old Gus: Fey     D&D 5e original/official source