Confirm Drop: Salis Writ Page 288 (Right)?

[Smoker]

Not seen the right side of this Pg drop at all. Gone past the lvl of mobs that I would expect to drop this.

It's for the lvl 39 Enc spell: Mind Wipe

Confirmed dropping in game: Salis Writ Page 288 (Right) ?

Also got all the pages for the lvl 49 spells, but not see any of:
Nitilim's Grimoire Page 378
Nitilim's Grimoire Page 379
For the lvl 49 Enc spell: Allure
I know those 2 drop somewhere...anyone remember where?

Cheerz