Do all xp bonuses stack?

[chronux]

I was wondering which xp bonuses stack... Since I'm planning on leveling my monk as fast as possible ^^

Currently I am thinking about the following ones:

- Rested xp bonus
- Refer a friend bonus
- Enlightment (50% monk buff) bonus
- Elixir of Ancient Knowledge (300% potion)

If someone knows which ones stack up with eachother, it would help me out alot before I waste that potion

[Maisteri]

I was wondering which xp bonuses stack... Since I'm planning on leveling my monk as fast as possible ^^

Currently I am thinking about the following ones:

- Rested xp bonus
- Refer a friend bonus
- Enlightment (50% monk buff) bonus
- Elixir of Ancient Knowledge (300% potion)

If someone knows which ones stack up with eachother, it would help me out alot before I waste that potion

Rested, heirlooms and guild bonus xp stack with the potion at least.

[chronux]

I believe RAF xp bonus didn't stack with rested, but it does with heirlooms i think... I wonder if i could combine enlightment with the potion, guild xp, heirlooms & rested. Would be sick