Preferences
Becker
sɔ̌ɔ sʉ̌a
Paiboon spelling from Thai for Beginners. Long and short เอือ are both written ʉa.
Paiboon+
sɔ̌ɔ sʉ̌ʉa
Later Paiboon books. Same as Becker, except long เอือ, เอีย, and อัว are doubled: ʉʉa, iia, uua.
Royal Institute
ko kai
The official romanization. It does not tell you that ก is unaspirated.
