↑"Leo XI | pope". Encyclopedia Britannica (yn Saesneg). Cyrchwyd 6 Mai 2019.
↑R. G. Skrynnikov: Boris Godunov, Moscow: Nauka, 1978/1983 and Gulf Breeze, Fla: Academic International Press, 1978/1982, ISBN 0-87569-046-7|language=en))
↑Zulfiqar Ahmad (1982). Lahore & the Punjab (yn Saesneg). Sang-e-Meel Publications. t. 118.