History of Kazakh characters in Unicode

[Kairat A. Rakhim]

Hello,

I'm writing an article about history of Kazakh and other Turkic alphabets.
Could you help me with history of their inclusion in Unicode?
Who have proposed characters which are specific for Kazakh and all other
Turkic languages in Arabic, Latin and Cyrillic scripts? How I can contact
with them?

Thank you in advance,

Kairat A. Rakhim,
Regional Universal Science Library of Karaganda,
KAZAKHSTAN