Rakshasa

Creature Codex (web)     Pathfinder original/official source

The Monsters Know What They're Doing     Dungeons And Dragons original/official source

Pathfinder 1e Bestiary 1     Pathfinder original/official source

Pathfinder 1e Bestiary 3     Pathfinder original/official source

Pathfinder 2e Bestiary 1     Pathfinder original/official source

Pathfinder 2e Bestiary 3     Pathfinder original/official source

Book Of The Damned     Pathfinder original/official source

Mythic Adventures     Pathfinder original/official source

Monster Classes: Sand And Spirit     Pathfinder original/official source

Monster Manual     D&D 5e original/official source

Monster Manual Expanded v1     D&D 5e original/official source

Old Gus: Plantfolk, Undead, And Other Oddities     D&D 5e original/official source

Asian Monsters     D&D 5e original/official source

Monster Ecology Anthology     D&D 5e (no source link)

Monster Manual     D&D 4e (no source link)

Dungeons And Dragons Essentials: Monster Vault     D&D 4e (no source link)

Monster Manual 3     D&D 3e original/official source

Dragon Magazine Monster Ecologies     D&D 2e/3e (no source link)

MojoBob (web)     D&D 2e original/official source

D&D 2e Monstrous Manual     D&D 2e original/official source

Scruffy Grognard's Monstrous Manual     D&D 2e (no source link)

AD&D Monster Manual     AD&D 1e (no source link)

13th Age Bestiary 2     13th Age (no source link)

Hacklopedia Of Beasts     Hackmaster original/official source

Blackdirge's Dungeon Denizens     Dungeon Crawl Classics (no source link)

Baby Bestiary 1     Any original/official source