Sources:
https://web.archive.org/web/20171124105512/http://www.ciil-lisindia.net/Korku/korku_Hist.html
https://web.archive.org/web/20171124105555/http://www.ciil-lisindia.net/Korku/korku_struct.html
https://web.archive.org/web/20171003161829/http://www.ciil-lisindia.net/Korku/korku_script.html
https://web.archive.org/web/20171124105643/http://www.ciil-lisindia.net/Korku/korku_speech.html
https://web.archive.org/web/20171124105703/http://www.ciil-lisindia.net/Korku/korku_Demo.html
https://web.archive.org/web/20171124105730/http://www.ciil-lisindia.net/Korku/korku_lite.html
https://web.archive.org/web/20171124105804/http://www.ciil-lisindia.net/Korku/korku_cult.html
https://web.archive.org/web/20171124105857/http://www.ciil-lisindia.net/Korku/korku_infores.html