Kosmovskaya А. А. “TAXES IN THE KAMA REGION IN THE 1730S–1770S: RECONSTRUCTING THE AMOUNT OF TAXES COLLECTED”. PERM UNIVERSITY HERALD. History 62, no. 3 (October 5, 2023): 28–44. Accessed May 17, 2024. https://press.psu.ru/index.php/history/article/view/8183.