Inam-ur-Rahim, Alain M. Viaro: Swat: an Afghan society in Pakistan. Urbanisation and change in tribal environment. City Press, 2002, ISBN 978-969-8380-55-7 (books.google.com – During Swati rule. The pre-Islamic faith of the dards was the Kalash faith which survives today in Northern Pakistan.).
The India Magazine of Her People and Culture. Band14. A. H. Advani, Bombay 1993 (englisch, books.google.com – Dardic religion in Ladakh, particularly in the villages of Da and Hann, retains marked traces of the pre-Buddhist animistic religion, Bon-chos).
