Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Insurgency in Punjab:

"

Bhindranwala increased his rhetoric against the enemies of Sikhs. A letter of authority was issued by Akal Takht to ostracize the Sant Nirankaris. A sentiment was created to justify extra judicial killings of the perceived enemies of Sikhism.[7] The chief proponents of this attitude were the Babbar Khalsa founded by the widow, Bibi Amarjit Kaur of the Akhand Kirtani Jatha, whose husband Fauja Singh had been at the head of the march in Amritsar; the Damdami Taksal led by Jarnail Singh Bhindranwala who had also been in Amritsar on the day of the outrage; the Dal Khalsa, formed with the object of demanding a sovereign Sikh state; and the All India Sikh Students Federation, which was banned by the government.